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23 <h1 class="settitle">XBoard</h1>
27 Next: <a rel="next" accesskey="n" href="#Major-modes">Major modes</a>,
28 Up: <a rel="up" accesskey="u" href="#dir">(dir)</a>
32 <h2 class="unnumbered">Introduction</h2>
34 <p><a name="index-introduction-1"></a>
36 <p>XBoard is a graphical chessboard that can serve as a
37 user interface to chess engines (such as GNU Chess), the
38 Internet Chess Servers,
39 electronic mail correspondence chess, or your own collection of saved games.
41 <p>This manual documents version 4.5.2 of XBoard.
44 <li><a accesskey="1" href="#Major-modes">Major modes</a>: The main things XBoard can do.
45 <li><a accesskey="2" href="#Basic-operation">Basic operation</a>: Mouse and keyboard functions.
46 <li><a accesskey="3" href="#Menus">Menus</a>: Menus, buttons, and keys.
47 <li><a accesskey="4" href="#Options">Options</a>: Command options supported by XBoard.
48 <li><a accesskey="5" href="#Chess-Servers">Chess Servers</a>: Using XBoard with an Internet Chess Server (ICS).
49 <li><a accesskey="6" href="#Firewalls">Firewalls</a>: Connecting to a chess server through a firewall.
50 <li><a accesskey="7" href="#Environment">Environment</a>: Environment variables.
51 <li><a accesskey="8" href="#Limitations">Limitations</a>: Known limitations and/or bugs.
52 <li><a accesskey="9" href="#Problems">Problems</a>: How and where to report any problems you run into.
53 <li><a href="#Contributors">Contributors</a>: People who have helped developing XBoard.
54 <li><a href="#CMail">CMail</a>: Using XBoard for electronic correspondence chess.
55 <li><a href="#Other-programs">Other programs</a>: Other programs you can use with XBoard.
57 <li><a href="#Copyright">Copyright</a>: Copyright notice for this manual.
58 <li><a href="#Copying">Copying</a>: The GNU General Public License.
60 <li><a href="#Index">Index</a>: Index of concepts and symbol names.
64 <a name="Major-modes"></a>
66 Next: <a rel="next" accesskey="n" href="#Basic-operation">Basic operation</a>,
67 Previous: <a rel="previous" accesskey="p" href="#Top">Top</a>,
68 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
72 <h2 class="chapter">1 Major modes</h2>
74 <p><a name="index-Major-modes-2"></a>
75 XBoard always runs in one of four major modes. You select the
76 major mode from the command line when you start up XBoard.
79 <dt>xboard [options]<dd>As an interface to GNU Chess or another chess engine running on your
80 machine, XBoard lets you play a game against the machine,
81 set up arbitrary positions, force variations, watch a game between two
82 chess engines, interactively analyze your stored games or set up and
83 analyze arbitrary positions. (Note: Not all chess engines support
85 <br><dt>xboard -ics -icshost hostname [options]<dd>As Internet Chess Server (ICS) interface, XBoard
86 lets you play against other ICS users, observe games
87 they are playing, or review games that have recently finished. Most
88 of the ICS "wild" chess variants are supported, including bughouse.
89 <br><dt>xboard -ncp [options]<dd>XBoard can also be used simply
90 as an electronic chessboard to play through games. It will read and
91 write game files and allow you to play through variations
92 manually. You can use it to browse games off the net or review games
93 you have saved. These features are also available in the other modes.
94 <br><dt>|pxboard<dd>If you want to pipe games into XBoard, use the supplied shell
95 script <samp><span class="file">pxboard</span></samp>. For example, from the news reader <samp><span class="file">xrn</span></samp>,
96 find a message with one or more games in it, click the Save button,
97 and type ‘<samp><span class="samp">|pxboard</span></samp>’ as the file name.
98 <br><dt>cmail [options]<dd>As an interface to electronic mail correspondence chess, XBoard
99 works with the cmail program. See <a href="#CMail">CMail</a> below for
104 <a name="Basic-operation"></a>
106 Next: <a rel="next" accesskey="n" href="#Menus">Menus</a>,
107 Previous: <a rel="previous" accesskey="p" href="#Major-modes">Major modes</a>,
108 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
112 <h2 class="chapter">2 Basic operation</h2>
114 <p><a name="index-Basic-operation-3"></a>
115 To move a piece, you can drag it with the left mouse button, or you
116 can click the left mouse button once on the piece, then once more on
117 the destination square. In crazyhouse, bughouse or shogi you can
118 drag and drop pieces to the board from the holdings squares
119 displayed next to the board.
120 Old behavior, where right-clicking a square brings up a menu
121 where you can select what piece to drop on it can still be
122 selected through a command-line option.
123 But only in Edit Position mode right clicking a square is still used to
124 pop up a menu, where you can select which piece to drop.
126 <p>The default function of the right mouse button in other modes is
127 to display the position the chess program thinks it will end up in.
128 While moving the mouse vertically with this button pressed
129 XBoard will step through the principal variation to show how
130 this position will be reached.
131 Lines of play displayed in the engine-output window,
132 or PGN variations in the comment window can similarly
133 be played out on the board, by right-clicking on them.
135 <p>When connected to an ICS, it is possible to call up a graphical
136 representation of players seeking a game in stead of the chess board,
137 when the latter is not in use
138 (i.e. when you are not playing or observing).
139 Left-clicking the display area will switch between this 'seek graph'
141 Hovering the mouse pointer over a dot will show the details of the
142 seek ad in the message field above the board.
143 Left-clicking the dot will challenge that player.
144 Right-clicking a dot will 'push it to the back',
145 to reveal any dots that were hidden behind it.
146 Right-clicking off dots will refresh the graph.
148 <p>Most other XBoard commands are available from the menu bar. The most
149 frequently used commands also have shortcut keys or on-screen buttons.
150 Some rarely used parameters can only be set through options on the
151 command line used to invoke XBoard.
153 <p>XBoard uses a settings file, in which it can remember any changes to
154 the settings that are made through menus or command-line options,
155 so they will still apply when you restart XBoard for another session.
156 The settings can be saved into this file automatically when XBoard exits,
157 or on explicit request of the user.
158 The default name for the settings file is /etc/xboard/xboard.conf,
159 but in a standard install this file is only used as a master settings
160 file that determines the system-wide default settings,
161 and defers reading and writing of user settings to a user-specific
162 file like ~/.xboardrc in the user's home directory.
164 <p>When XBoard is iconized, its graphical icon is a white knight if
165 it is White's turn to move, a black knight if it is Black's turn. See
166 Iconize in <a href="#Keys">Keys</a> below if you have problems getting this
172 Next: <a rel="next" accesskey="n" href="#Options">Options</a>,
173 Previous: <a rel="previous" accesskey="p" href="#Basic-operation">Basic operation</a>,
174 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
178 <h2 class="chapter">3 Menus, buttons, and keys</h2>
180 <p><a name="index-Menus-4"></a>
183 <li><a accesskey="1" href="#File-Menu">File Menu</a>: Accessing external games and positions.
184 <li><a accesskey="2" href="#Edit-Menu">Edit Menu</a>: Altering games, positions, PGN tags or comments.
185 <li><a accesskey="3" href="#View-Menu">View Menu</a>: Controlling XBoard's shape and looks.
186 <li><a accesskey="4" href="#Mode-Menu">Mode Menu</a>: Selecting XBoard's mode.
187 <li><a accesskey="5" href="#Action-Menu">Action Menu</a>: Talking to the chess engine or ICS opponents.
188 <li><a accesskey="6" href="#Engine-Menu">Engine Menu</a>: Controlling settings and actions of the engine(s).
189 <li><a accesskey="7" href="#Options-Menu">Options Menu</a>: User preferences.
190 <li><a accesskey="8" href="#Help-Menu">Help Menu</a>: Getting help.
191 <li><a accesskey="9" href="#Keys">Keys</a>: Other shortcut keys.
195 <a name="File-Menu"></a>
197 Next: <a rel="next" accesskey="n" href="#Edit-Menu">Edit Menu</a>,
198 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
202 <h3 class="section">3.1 File Menu</h3>
204 <p><a name="index-File-Menu-5"></a><a name="index-Menu_002c-File-6"></a>
206 <dt>New Game<dd><a name="index-New-Game_002c-Menu-Item-7"></a>Resets XBoard and the chess engine to the beginning of a new chess
207 game. The <kbd>Ctrl-N</kbd> key is a keyboard equivalent. In Internet Chess
208 Server mode, clears the current state of XBoard, then
209 resynchronizes with the ICS by sending a refresh command. If you want to
210 stop playing, observing, or examining an ICS game, use an
211 appropriate command from the Action menu, not ‘<samp><span class="samp">New Game</span></samp>’.
212 See <a href="#Action-Menu">Action Menu</a>.
213 <br><dt>New Shuffle Game<dd><a name="index-New-Shuffle-Game_002c-Menu-Item-8"></a>Similar to ‘<samp><span class="samp">New Game</span></samp>’, but allows you to specify a particular initial position
214 (according to a standardized numbering system)
215 in chess variants which use randomized opening positions (e.g. Chess960).
216 The selected opening position will persistently be chosen on any following
217 New Game command until you use this menu to select another. Selecting
218 position number -1 will produce a newly randomized position on any new game.
219 Using this menu item in variants that normally do not shuffle their opening position
220 does cause these variants to become shuffle variants until you use the
221 ‘<samp><span class="samp">New Shuffle Game</span></samp>’ menu to explicitly switch the randomization off,
222 or select a new variant.
223 <br><dt>New Variant<dd><a name="index-New-variant_002c-Menu-Item-9"></a>Allows you to select a new chess variant in non-ICS mode.
224 (In ICS play, the ICS is responsible for deciding which variant will be played,
225 and XBoard adapts automatically.) The shifted <kbd>Alt+V</kbd> key is a
226 keyboard equivalent. If you play with an engine, the engine must
227 be able to play the selected variant, or the command will be ignored.
228 XBoard supports all major variants, such as xiangqi, shogi, chess, chess960,
229 Capablanca Chess, shatranj, crazyhouse, bughouse.
230 But not every board size has built-in bitmaps for un-orthodox pieces!
231 Only sizes bulky (72) and middling (49) have all pieces,
232 while size petite (33) has most.
233 These sizes would have to be set at startup through the <code>size</code>
234 command-line option when you start up XBoard for such variants to be playable.
236 <p>You can overrule the default board format of the selected variant,
237 (e.g. to play suicide chess on a 6 x 6 board),
238 in this dialog, but normally you would not do that,
239 and leave them at '-1', which means 'default'.
240 <br><dt>Load Game<dd><a name="index-Load-Game_002c-Menu-Item-10"></a>Plays a game from a record file. The <kbd>Ctrl-O</kbd> key is a keyboard equivalent.
241 A pop-up dialog prompts you for the file name. If the file contains more
242 than one game, a second pop-up dialog
243 displays a list of games (with information drawn from their PGN tags, if
244 any), and you can select the one you want. Alternatively, you can load the
245 Nth game in the file directly, by typing the number <kbd>N</kbd> after the
246 file name, separated by a space.
248 <p>The game file parser will accept PGN (portable game notation),
249 or in fact almost any file that contains moves in algebraic
251 Notation of the form ‘<samp><span class="samp">P@f7</span></samp>’
252 is accepted for piece-drops in bughouse games;
253 this is a nonstandard extension to PGN.
254 If the file includes a PGN position (FEN tag), or an old-style
255 XBoard position diagram bracketed by ‘<samp><span class="samp">[--</span></samp>’ and ‘<samp><span class="samp">--]</span></samp>’
256 before the first move, the game starts from that position. Text
257 enclosed in parentheses, square brackets, or curly braces is assumed to
258 be commentary and is displayed in a pop-up window. Any other
259 text in the file is ignored. PGN variations (enclosed in
260 parentheses) also are treated as comments;
261 however, if you rights-click them in the comment window,
262 XBoard will shelve the current line, and load the the selected variation,
263 so you can step through it.
264 You can later revert to the previous line with the ‘<samp><span class="samp">Revert</span></samp>’ command.
265 This way you can walk quite complex varation trees with XBoard.
266 The nonstandard PGN tag [Variant "varname"] functions similarly to
267 the -variant command-line option (see below), allowing games in certain chess
268 variants to be loaded.
269 Note that it must appear before any FEN tag for XBoard to recognize
270 variant FENs appropriately.
271 There is also a heuristic to
272 recognize chess variants from the Event tag, by looking for the strings
273 that the Internet Chess Servers put there when saving variant ("wild") games.
274 <br><dt>Load Position<dd><a name="index-Load-Position_002c-Menu-Item-11"></a>Sets up a position from a position file. A pop-up dialog prompts
275 you for the file name. The shifted <kbd>Ctrl-O</kbd> key is a keyboard
276 equivalent. If the file contains more than one saved
277 position, and you want to load the Nth one, type the number N
278 after the file name, separated by a space. Position files must
279 be in FEN (Forsythe-Edwards notation), or in the format that the
280 Save Position command writes when oldSaveStyle is turned on.
281 <br><dt>Load Next Position<dd><a name="index-Load-Next-Position_002c-Menu-Item-12"></a>Loads the next position from the last position file you loaded.
282 The shifted <kbd>PgDn</kbd> key is a keyboard equivalent.
283 <br><dt>Load Previous Position<dd><a name="index-Load-Previous-Position_002c-Menu-Item-13"></a>Loads the previous position from the last position file you
284 loaded. The shifted <kbd>PgUp</kbd> key is a keyboard equivalent.
285 Not available if the last position was loaded from a pipe.
286 <br><dt>Save Game<dd><a name="index-Save-Game_002c-Menu-Item-14"></a>Appends a record of the current game to a file.
287 The <kbd>Ctrl-S</kbd> key is a keyboard equivalent.
289 prompts you for the file name. If the game did not begin with
290 the standard starting position, the game file includes the
291 starting position used. Games are saved in the PGN (portable
292 game notation) format, unless the oldSaveStyle option is true,
293 in which case they are saved in an older format that is specific
294 to XBoard. Both formats are human-readable, and both can be
295 read back by the ‘<samp><span class="samp">Load Game</span></samp>’ command.
296 Notation of the form ‘<samp><span class="samp">P@f7</span></samp>’
297 is accepted for piece-drops in bughouse games;
298 this is a nonstandard extension to PGN.
299 <br><dt>Save Position<dd><a name="index-Save-Position_002c-Menu-Item-15"></a>Appends a diagram of the current position to a file.
300 The shifted <kbd>Ctrl+S</kbd> key is a keyboard equivalent.
301 A pop-up dialog prompts you for the file name. Positions are saved in
302 FEN (Forsythe-Edwards notation) format unless the <code>oldSaveStyle</code>
303 option is true, in which case they are saved in an older,
304 human-readable format that is specific to XBoard. Both formats
305 can be read back by the ‘<samp><span class="samp">Load Position</span></samp>’ command.
306 <br><dt>Mail Move<dt>Reload CMail Message<dd><a name="index-Mail-Move_002c-Menu-Item-16"></a><a name="index-Reload-CMail-Message_002c-Menu-Item-17"></a>See <a href="#CMail">CMail</a>.
307 <br><dt>Exit<dd><a name="index-Exit_002c-Menu-Item-18"></a>Exits from XBoard. The <kbd>Ctrl-Q</kbd> key is a keyboard equivalent.
311 <a name="Edit-Menu"></a>
313 Next: <a rel="next" accesskey="n" href="#View-Menu">View Menu</a>,
314 Previous: <a rel="previous" accesskey="p" href="#File-Menu">File Menu</a>,
315 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
319 <h3 class="section">3.2 Edit Menu</h3>
321 <p><a name="index-Menu_002c-Edit-19"></a><a name="index-Edit-Menu-20"></a>
323 <dt>Copy Game<dd><a name="index-Copy-Game_002c-Menu-Item-21"></a>Copies a record of the current game to an internal clipboard in PGN
324 format and sets the X selection to the game text. The <kbd>Ctrl-C</kbd>
325 key is a keyboard equivalent. The game can be
326 pasted to another application (such as a text editor or another copy
327 of XBoard) using that application's paste command. In many X
328 applications, such as xterm and emacs, the middle mouse button can be
329 used for pasting; in XBoard, you must use the Paste Game command.
330 <br><dt>Copy Position<dd><a name="index-Copy-Position_002c-Menu-Item-22"></a>Copies the current position to an internal clipboard in FEN format and
331 sets the X selection to the position text. The shifted <kbd>Ctrl-C</kbd> key
332 is a keyboard equivalent. The position can be pasted
333 to another application (such as a text editor or another copy of
334 XBoard) using that application's paste command. In many X
335 applications, such as xterm and emacs, the middle mouse button can be
336 used for pasting; in XBoard, you must use the Paste Position command.
337 <br><dt>Paste Game<dd><a name="index-Paste-Game_002c-Menu-Item-23"></a>Interprets the current X selection as a game record and loads it, as
338 with Load Game. The <kbd>Ctrl-V</kbd> key is a keyboard equivalent.
339 <br><dt>Paste Position<dd><a name="index-Paste-Position_002c-Menu-Item-24"></a>Interprets the current X selection as a FEN position and loads it, as
340 with Load Position. The shifted <kbd>Ctrl-V</kbd> key is a keyboard equivalent.
341 <br><dt>Edit Game<dd><a name="index-Edit-Game_002c-Menu-Item-25"></a>Allows you to make moves for both Black and White, and to change
342 moves after backing up with the ‘<samp><span class="samp">Backward</span></samp>’ command. The clocks do
343 not run. The <kbd>Ctrl-E</kbd> key is a keyboard equivalent.
345 <p>In chess engine mode, the chess engine continues to check moves for legality
346 but does not participate in the game. You can bring the chess engine
347 into the game by selecting ‘<samp><span class="samp">Machine White</span></samp>’, ‘<samp><span class="samp">Machine Black</span></samp>’,
348 or ‘<samp><span class="samp">Two Machines</span></samp>’.
350 <p>In ICS mode, the moves are not sent to the ICS: ‘<samp><span class="samp">Edit Game</span></samp>’ takes
351 XBoard out of ICS Client mode and lets you edit games locally.
352 If you want to edit games on ICS in a way that other ICS users
353 can see, use the ICS <kbd>examine</kbd> command or start an ICS match
355 <br><dt>Edit Position<dd><a name="index-Edit-Position_002c-Menu-Item-26"></a>Lets you set up an arbitrary board position.
356 The shifted <kbd>Ctrl-E</kbd> key is a keyboard equivalent.
357 Use mouse button 1 to drag pieces to new squares, or to delete a piece
358 by dragging it off the board or dragging an empty square on top of it.
359 To drop a new piece on a square, press mouse button 2 or 3 over the
360 square. This brings up a menu of white pieces (button 2) or
361 black pieces (button 3). Additional menu choices let you empty the
362 square or clear the board. You can set the side to play next by
363 clicking on the word White or Black at the top of the screen.
364 Selecting ‘<samp><span class="samp">Edit Position</span></samp>’ causes XBoard to discard
365 all remembered moves in the current game.
367 <p>In ICS mode, changes made to the position by ‘<samp><span class="samp">Edit Position</span></samp>’ are
368 not sent to the ICS: ‘<samp><span class="samp">Edit Position</span></samp>’ takes XBoard out of
369 ‘<samp><span class="samp">ICS Client</span></samp>’ mode and lets you edit positions locally. If you want to
370 edit positions on ICS in a way that other ICS users can see, use
371 the ICS <kbd>examine</kbd> command, or start an ICS match against yourself.
372 (See also the ICS Client topic above.)
373 <br><dt>Edit Tags<dd><a name="index-Edit-Tags_002c-Menu-Item-27"></a>Lets you edit the PGN (portable game notation)
374 tags for the current game. After editing, the tags must still conform to
377 <pre class="example"> <tag-section> ::= <tag-pair> <tag-section>
379 <tag-pair> ::= [ <tag-name> <tag-value> ]
380 <tag-name> ::= <identifier>
381 <tag-value> ::= <string>
383 <p class="noindent">See the PGN Standard for full details. Here is an example:
385 <pre class="example"> [Event "Portoroz Interzonal"]
386 [Site "Portoroz, Yugoslavia"]
389 [White "Robert J. Fischer"]
390 [Black "Bent Larsen"]
393 <p class="noindent">Any characters that do not match this syntax are silently ignored. Note that
394 the PGN standard requires all games to have at least the seven tags shown
395 above. Any that you omit will be filled in by XBoard
396 with ‘<samp><span class="samp">?</span></samp>’ (unknown value), or ‘<samp><span class="samp">-</span></samp>’ (inapplicable value).
397 <br><dt>Edit Comment<dd><a name="index-Edit-Comment_002c-Menu-Item-28"></a>Adds or modifies a comment on the current position. Comments are
398 saved by ‘<samp><span class="samp">Save Game</span></samp>’ and are displayed by ‘<samp><span class="samp">Load Game</span></samp>’,
399 ‘<samp><span class="samp">Forward</span></samp>’, and ‘<samp><span class="samp">Backward</span></samp>’.
400 <br><dt>Revert<dt>Annotate<dd><a name="index-Revert_002c-Menu-Item-29"></a><a name="index-Annotate_002c-Menu-Item-30"></a>If you are examining an ICS game and Pause mode is off,
401 Revert issues the ICS command ‘<samp><span class="samp">revert</span></samp>’.
402 In local mode, when you were editing or analyzing a game,
403 and the <code>-variations</code> command-line option is switched on,
404 you can start a new variation by holding the Shift key down while
405 entering a move not at the end of the game.
406 Variations can also become the currently displayed line by
407 clicking a PGN variation displayed in the Comment window.
408 This can be applied recursively,
409 so that you can analyze variations on variations;
410 each time you create a new variation by entering an alternative move
411 with Shift pressed, or select a new one from the Comment window,
412 the current variation will be shelved.
413 ‘<samp><span class="samp">Revert</span></samp>’ allows you to return to the most recently shelved variation.
414 The difference between ‘<samp><span class="samp">Revert</span></samp>’ and ‘<samp><span class="samp">Annotate</span></samp>’
415 is that with the latter,
416 the variation you are now abandoning will be added as a comment
417 (in PGN variation syntax, i.e. between parentheses)
418 to the original move where you deviated, for later recalling.
419 The <kbd>Home</kbd> key is a keyboard equivalent to ‘<samp><span class="samp">Revert</span></samp>’.
420 <br><dt>Truncate Game<dd><a name="index-Truncate-Game_002c-Menu-Item-31"></a>Discards all remembered moves of the game beyond the current
421 position. Puts XBoard into ‘<samp><span class="samp">Edit Game</span></samp>’ mode if it was not there
423 The <kbd>End</kbd> key is a keyboard equivalent.
424 <br><dt>Backward<dd><a name="index-Backward_002c-Menu-Item-32"></a><a name="index-g_t_003c_002c-Button-33"></a>Steps backward through a series of remembered moves.
425 The ‘<samp><span class="samp">[<]</span></samp>’ button and the <kbd>Alt+LeftArrow</kbd> key are equivalents,
426 as is turning the mouse wheel towards you.
427 In addition, pressing the Control key steps back one move, and releasing
428 it steps forward again.
430 <p>In most modes, ‘<samp><span class="samp">Backward</span></samp>’ only lets you look back at old positions;
431 it does not retract moves. This is the case if you are playing against
432 a chess engine, playing or observing a game on an ICS, or loading a game.
433 If you select ‘<samp><span class="samp">Backward</span></samp>’ in any of these situations, you will not
434 be allowed to make a different move. Use ‘<samp><span class="samp">Retract Move</span></samp>’ or
435 ‘<samp><span class="samp">Edit Game</span></samp>’ if you want to change past moves.
437 <p>If you are examining an ICS game, the behavior of ‘<samp><span class="samp">Backward</span></samp>’
438 depends on whether XBoard is in Pause mode. If Pause mode is
439 off, ‘<samp><span class="samp">Backward</span></samp>’ issues the ICS backward command, which backs up
440 everyone's view of the game and allows you to make a different
441 move. If Pause mode is on, ‘<samp><span class="samp">Backward</span></samp>’ only backs up your local
443 <br><dt>Forward<dd><a name="index-Forward_002c-Menu-Item-34"></a><a name="index-g_t_003e_002c-Button-35"></a>Steps forward through a series of remembered moves (undoing the
444 effect of ‘<samp><span class="samp">Backward</span></samp>’) or forward through a game file. The
445 ‘<samp><span class="samp">[>]</span></samp>’ button and the <kbd>Alt+RightArrow</kbd> key are equivalents,
446 as is turning the mouse wheel away from you.
448 <p>If you are examining an ICS game, the behavior of Forward
449 depends on whether XBoard is in Pause mode. If Pause mode is
450 off, ‘<samp><span class="samp">Forward</span></samp>’ issues the ICS forward command, which moves
451 everyone's view of the game forward along the current line. If
452 Pause mode is on, ‘<samp><span class="samp">Forward</span></samp>’ only moves your local view forward,
453 and it will not go past the position that the game was in when
455 <br><dt>Back to Start<dd><a name="index-Back-to-Start_002c-Menu-Item-36"></a><a name="index-g_t_003c_003c_002c-Button-37"></a>Jumps backward to the first remembered position in the game.
456 The ‘<samp><span class="samp">[<<]</span></samp>’ button and the <kbd>Alt+Home</kbd> key are equivalents.
458 <p>In most modes, Back to Start only lets you look back at old
459 positions; it does not retract moves. This is the case if you
460 are playing against a local chess engine, playing or observing a game on
461 a chess server, or loading a game. If you select ‘<samp><span class="samp">Back to Start</span></samp>’ in any
462 of these situations, you will not be allowed to make different
463 moves. Use ‘<samp><span class="samp">Retract Move</span></samp>’ or ‘<samp><span class="samp">Edit Game</span></samp>’ if you want to change past
464 moves; or use Reset to start a new game.
466 <p>If you are examining an ICS game, the behavior of ‘<samp><span class="samp">Back to
467 Start</span></samp>’ depends on whether XBoard is in Pause mode. If Pause mode
468 is off, ‘<samp><span class="samp">Back to Start</span></samp>’ issues the ICS ‘<samp><span class="samp">backward 999999</span></samp>’
469 command, which backs up everyone's view of the game to the start and
470 allows you to make different moves. If Pause mode is on, ‘<samp><span class="samp">Back
471 to Start</span></samp>’ only backs up your local view.
472 <br><dt>Forward to End<dd><a name="index-Forward-to-End_002c-Menu-Item-38"></a><a name="index-g_t_003e_003e_002c-Button-39"></a>Jumps forward to the last remembered position in the game. The
473 ‘<samp><span class="samp">[>>]</span></samp>’ button and the <kbd>Alt+End</kbd> key are equivalents.
475 <p>If you are examining an ICS game, the behavior of ‘<samp><span class="samp">Forward to
476 End</span></samp>’ depends on whether XBoard is in Pause mode. If Pause mode
477 is off, ‘<samp><span class="samp">Forward to End</span></samp>’ issues the ICS ‘<samp><span class="samp">forward 999999</span></samp>’
478 command, which moves everyone's view of the game forward to the end of
479 the current line. If Pause mode is on, ‘<samp><span class="samp">Forward to End</span></samp>’ only moves
480 your local view forward, and it will not go past the position
481 that the game was in when you paused.
485 <a name="View-Menu"></a>
487 Next: <a rel="next" accesskey="n" href="#Mode-Menu">Mode Menu</a>,
488 Previous: <a rel="previous" accesskey="p" href="#Edit-Menu">Edit Menu</a>,
489 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
493 <h3 class="section">3.3 View Menu</h3>
495 <p><a name="index-Menu_002c-View-40"></a><a name="index-View-Menu-41"></a>
497 <dt>Flip View<dd><a name="index-Flip-View_002c-Menu-Item-42"></a>Inverts your view of the chess board for the duration of the
498 current game. Starting a new game returns the board to normal.
499 The <kbd>F2</kbd> key is a keyboard equivalent.
500 <br><dt>Show Engine Output<dd><a name="index-Show-Engine-Output_002c-Menu-Item-43"></a>Shows or hides a window in which the thinking output of any loaded engines
501 is displayed. The shifted <kbd>Alt+O</kbd> key is a keyboard equivalent.
502 XBoard will display lines of thinking output of the same depth ordered by score,
503 (highest score on top), rather than in the order the engine produced them.
504 Usually this amounts to the same, as a normal engine search will only find new PV
505 (and emit it as thinking output)
506 when it searches a move with a higher score than the previous variation.
507 But when the engine is in multi-variation mode this needs not always be true,
508 and it is more convenient for someone analyzing games to see the moves sorted by score.
509 The order in which the engine found them is only of interest to the engine author,
510 and can still be deduced from the time or node count printed with the line.
511 <br><dt>Show Move History<dd><a name="index-Show-Move-History_002c-Menu-Item-44"></a>Shows or hides a list of moves of the current game.
512 The shifted <kbd>Alt+H</kbd> key is a keyboard equivalent.
513 This list allows you to move the display to any earlier position in the game
514 by clicking on the corresponding move.
515 <br><dt>Show Evaluation Graph<dd><a name="index-Show-Evaluation-Graph_002c-Menu-Item-45"></a>Shows or hides a window which displays a graph of how the engine score(s)
516 evolved as a function of the move number.
517 The shifted <kbd>Alt+E</kbd> key is a keyboard equivalent.
518 Clicking on the graph will bring
519 the corresponding position in the board display.
520 <br><dt>Show Game List<dd><a name="index-Show-Game-List_002c-Menu-Item-46"></a>Shows or hides the list of games generated by the last ‘<samp><span class="samp">Load Game</span></samp>’
521 command. The shifted <kbd>Alt+G</kbd> key is a keyboard equivalent.
522 <br><dt>Tags<dd><a name="index-Tags_002c-Menu-Item-47"></a>Pops up a window which shows the PGN (portable game notation)
523 tags for the current game.
524 For now this is a duplicate of the ‘<samp><span class="samp">Edit Tags</span></samp>’ item in the ‘<samp><span class="samp">Edit</span></samp>’ menu.
525 <br><dt>Comments<dd><a name="index-Comments_002c-Menu-Item-48"></a>Pops up a window which shows any comments to or variations on the current move.
526 For now this is a duplicate of the ‘<samp><span class="samp">Edit Comment</span></samp>’ item in the ‘<samp><span class="samp">Edit</span></samp>’ menu.
527 <br><dt>ICS Input Box<dd><a name="index-ICS-Input-Box_002c-Menu-Item-49"></a>If this option is set in ICS mode,
529 creates an extra window that you can use for typing in ICS commands.
530 The input box is especially useful if you want to type in something long or do
531 some editing on your input, because output from ICS doesn't get mixed
532 in with your typing as it would in the main terminal window.
533 <br><dt>Board<dd><a name="index-Board_002c-Menu-Item-50"></a>Summons a dialog where you can customize the look of the chess board.
534 Here you can specify the directory from which piece images should be taken,
535 when you don't want to use the built-in piece images
536 (see <code>pixmapDirectory</code> and <code>bitmapDirectory</code> options),
537 an external pixmap to be used for the board squares
538 (<code>liteBackTextureFile</code> and <code>darkBackTextureFile</code> options),
539 and square and piece colors for the built-ins.
540 <br><dt>Game List Tags<dd><a name="index-Game-List-Tags_002c-Menu-Item-51"></a>a duplicate of the Game List dialog in the Options menu.
544 <a name="Mode-Menu"></a>
546 Next: <a rel="next" accesskey="n" href="#Action-Menu">Action Menu</a>,
547 Previous: <a rel="previous" accesskey="p" href="#View-Menu">View Menu</a>,
548 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
552 <h3 class="section">3.4 Mode Menu</h3>
554 <p><a name="index-Menu_002c-Mode-52"></a><a name="index-Mode-Menu-53"></a>
556 <dt>Machine White<dd><a name="index-Machine-White_002c-Menu-Item-54"></a>Tells the chess engine to play White.
557 The <kbd>Ctrl-W</kbd> key is a keyboard equivalent.
558 <br><dt>Machine Black<dd><a name="index-Machine-Black_002c-Menu-Item-55"></a>Tells the chess engine to play Black.
559 The <kbd>Ctrl-B</kbd> key is a keyboard equivalent.
560 <br><dt>Two Machines<dd><a name="index-Two-Machines_002c-Menu-Item-56"></a>Plays a game between two chess engines.
561 The <kbd>Ctrl-T</kbd> key is a keyboard equivalent.
562 <br><dt>Analysis Mode<dd><a name="index-Analysis-Mode_002c-Menu-Item-57"></a>XBoard tells the chess engine to start analyzing the current game/position
563 and shows you the analysis as you move pieces around.
564 The <kbd>Ctrl-A</kbd> key is a keyboard equivalent.
565 Note: Some chess engines do not support Analysis mode.
567 <p>To set up a position to analyze, you do the following:
569 <p>1. Select Edit Position from the Mode Menu
571 <p>2. Set up the position. Use the middle and right buttons to
572 bring up the white and black piece menus.
574 <p>3. When you are finished, click on either the Black or White
575 clock to tell XBoard which side moves first.
577 <p>4. Select Analysis Mode from the Mode Menu to start the analysis.
579 <p>The analysis function can also be used when observing games on an ICS
580 with an engine loaded (zippy mode); the engine then will analyse
581 the positions as they occur in the observed game.
582 <br><dt>Analyze File<dd><a name="index-Analyze-File_002c-Menu-Item-58"></a>This option lets you load a game from a file (PGN, XBoard format, etc.)
583 and analyze it. The <kbd>Ctrl-F</kbd> key is a keyboard equivalent.
584 When you select this menu item, a pop-up window appears
585 and asks for a file name to load.
586 If the file contains multiple games, another pop up appears that lets
587 you select which game you wish to analyze.
588 After a game is loaded, XBoard will start auto-playing the game,
589 while the engine is analyzing the current position.
590 The game will be annotated with the results of these analyses.
591 In particlar, the score and depth will be added as a comment,
592 and the PV will be added as a variation.
593 The time the engine spends on analyzing each move can be controlled
594 through the command-line option ‘<samp><span class="samp">-timeDelay</span></samp>’.
595 Note: Some chess engines do not support Analysis mode.
596 <br><dt>Edit Game<dd>Duplicate of the item in the Edit menu.
597 Note that ‘<samp><span class="samp">Edit Game</span></samp>’ is the idle mode of XBoard, and can be used
598 to get you out of other modes. E.g. to stop analyzing, stop a game
599 between two engines or stop editing a position.
600 <br><dt>Edit Position<dd>Duplicate of the item in the Edit menu.
601 <br><dt>Training<dd><a name="index-Training_002c-Menu-Item-59"></a>Training mode lets you interactively guess the moves of a game for one
602 of the players. You guess the next move of the game by playing the
603 move on the board. If the move played matches the next move of the
604 game, the move is accepted and the opponent's response is auto-played.
605 If the move played is incorrect, an error message is displayed. You
606 can select this mode only while loading a game (that is, after
607 selecting ‘<samp><span class="samp">Load Game</span></samp>’ from the File menu). While XBoard is in
608 ‘<samp><span class="samp">Training</span></samp>’ mode, the navigation buttons are disabled.
609 <br><dt>ICS Client<dd><a name="index-ICS-Client_002c-Menu-Item-60"></a>This is the normal mode when XBoard
610 is connected to a chess server. If you have moved into
611 Edit Game or Edit Position mode, you can select this option to get out.
613 <p>To use xboard in ICS mode, run it in the foreground with the -ics
614 option, and use the terminal you started it from to type commands and
615 receive text responses from the chess server. See
616 <a href="#Chess-Servers">Chess Servers</a> below for more information.
618 <p>XBoard activates some special position/game editing features when you
619 use the <kbd>examine</kbd> or <kbd>bsetup</kbd> commands on ICS and you have
620 ‘<samp><span class="samp">ICS Client</span></samp>’ selected on the Mode menu. First, you can issue the
621 ICS position-editing commands with the mouse. Move pieces by dragging
622 with mouse button 1. To drop a new piece on a square, press mouse
623 button 2 or 3 over the square. This brings up a menu of white pieces
624 (button 2) or black pieces (button 3). Additional menu choices let
625 you empty the square or clear the board. Click on the White or Black
626 clock to set the side to play. You cannot set the side to play or
627 drag pieces to arbitrary squares while examining on ICC, but you can
628 do so in <kbd>bsetup</kbd> mode on FICS. In addition, the menu commands
629 ‘<samp><span class="samp">Forward</span></samp>’, ‘<samp><span class="samp">Backward</span></samp>’, ‘<samp><span class="samp">Pause</span></samp>’, and ‘<samp><span class="samp">Stop Examining</span></samp>’
630 have special functions in this mode; see below.
631 <br><dt>Machine Match<dd><a name="index-Machine-match_002c-Menu-Item-61"></a>Starts a match between two chess programs,
632 with a number of games and other parameters set through
633 the ‘<samp><span class="samp">Match Options</span></samp>’ menu dialog.
634 <br><dt>Pause<dd><a name="index-Pause_002c-Menu-Item-62"></a>Pauses updates to the board, and if you are playing against a chess engine,
635 also pauses your clock. To continue, select ‘<samp><span class="samp">Pause</span></samp>’ again, and the
636 display will automatically update to the latest position.
637 The ‘<samp><span class="samp">P</span></samp>’ button and keyboard <kbd>Pause</kbd> key are equivalents.
639 <p>If you select Pause when you are playing against a chess engine and
640 it is not your move, the chess engine's clock
641 will continue to run and it will eventually make a move, at which point
642 both clocks will stop. Since board updates are paused, however,
643 you will not see the move until you exit from Pause mode (or select Forward).
644 This behavior is meant to simulate adjournment with a sealed move.
646 <p>If you select Pause while you are observing or examining a game on a
647 chess server, you can step backward and forward in the current history
648 of the examined game without affecting the other observers and
649 examiners, and without having your display jump forward to the latest
650 position each time a move is made. Select Pause again to reconnect
651 yourself to the current state of the game on ICS.
653 <p>If you select ‘<samp><span class="samp">Pause</span></samp>’ while you are loading a game, the game stops
654 loading. You can load more moves manually by selecting ‘<samp><span class="samp">Forward</span></samp>’, or
655 resume automatic loading by selecting ‘<samp><span class="samp">Pause</span></samp>’ again.
659 <a name="Action-Menu"></a>
661 Next: <a rel="next" accesskey="n" href="#Engine-Menu">Engine Menu</a>,
662 Previous: <a rel="previous" accesskey="p" href="#Mode-Menu">Mode Menu</a>,
663 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
667 <h3 class="section">3.5 Action Menu</h3>
669 <p><a name="index-Menu_002c-Action-63"></a><a name="index-Action_002c-Menu-64"></a>
671 <dt>Accept<dd><a name="index-Accept_002c-Menu-Item-65"></a>Accepts a pending match offer.
672 The <kbd>F3</kbd> key is a keyboard equivalent.
673 If there is more than one offer
674 pending, you will have to type in a more specific command
675 instead of using this menu choice.
676 <br><dt>Decline<dd><a name="index-Decline_002c-Menu-Item-66"></a>Declines a pending offer (match, draw, adjourn, etc.).
677 The <kbd>F4</kbd> key is a keyboard equivalent. If there
678 is more than one offer pending, you will have to type in a more
679 specific command instead of using this menu choice.
680 <br><dt>Call Flag<dd><a name="index-Call-Flag_002c-Menu-Item-67"></a>Calls your opponent's flag, claiming a win on time, or claiming
681 a draw if you are both out of time.
682 The <kbd>F5</kbd> key is a keyboard equivalent.
683 You can also call your
684 opponent's flag by clicking on his clock.
685 <br><dt>Draw<dd><a name="index-Draw_002c-Menu-Item-68"></a>Offers a draw to your opponent, accepts a pending draw offer
686 from your opponent, or claims a draw by repetition or the 50-move
687 rule, as appropriate. The <kbd>F6</kbd> key is a keyboard equivalent.
688 <br><dt>Adjourn<dd><a name="index-Adjourn_002c-Menu-Item-69"></a>Asks your opponent to agree to adjourning the current game, or
689 agrees to a pending adjournment offer from your opponent.
690 The <kbd>F7</kbd> key is a keyboard equivalent.
691 <br><dt>Abort<dd><a name="index-Abort_002c-Menu-Item-70"></a>Asks your opponent to agree to aborting the current game, or
692 agrees to a pending abort offer from your opponent.
693 The <kbd>F8</kbd> key is a keyboard equivalent. An aborted
694 game ends immediately without affecting either player's rating.
695 <br><dt>Resign<dd><a name="index-Resign_002c-Menu-Item-71"></a>Resigns the game to your opponent. The <kbd>F9</kbd> key is a
697 <br><dt>Stop Observing<dd><a name="index-Stop-Observing_002c-Menu-Item-72"></a>Ends your participation in observing a game, by issuing the ICS
698 observe command with no arguments. ICS mode only.
699 The <kbd>F10</kbd> key is a keyboard equivalent.
700 <br><dt>Stop Examining<dd><a name="index-Stop-Examining_002c-Menu-Item-73"></a>Ends your participation in examining a game, by issuing the ICS
701 unexamine command. ICS mode only.
702 The <kbd>F11</kbd> key is a keyboard equivalent.
703 <br><dt>Upload to Examine<dd><a name="index-Upload-to-Examine_002c-Menu-Item-74"></a>Create an examined game of the proper variant on the ICS,
704 and send the game there that is currenty loaded in XBoard
705 (e.g. through pasting or loading from file).
706 You must be connected to an ICS for this to work.
707 <br><dt>Adjudicate to White<dt>Adjudicate to Black<dt>Adjudicate Draw<dd><a name="index-Adjudicate-to-White_002c-Menu-Item-75"></a><a name="index-Adjudicate-to-Black_002c-Menu-Item-76"></a><a name="index-Adjudicate-Draw_002c-Menu-Item-77"></a>Terminate an ongoing game in Two-Machines mode (including match mode),
708 with as result a win for white, for black, or a draw, respectively.
709 The PGN file of the game will accompany the result string
710 by the comment "user adjudication".
714 <a name="Engine-Menu"></a>
716 Next: <a rel="next" accesskey="n" href="#Options-Menu">Options Menu</a>,
717 Previous: <a rel="previous" accesskey="p" href="#Action-Menu">Action Menu</a>,
718 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
722 <h3 class="section">3.6 Engine Menu</h3>
724 <p><a name="index-Engine-Menu-78"></a><a name="index-Menu_002c-Engine-79"></a>
726 <dt>Engine #N Settings<dd><a name="index-Engine-Settings_002c-Menu-Item-80"></a><a name="index-Engine-_00231-Settings_002c-Menu-Item-81"></a><a name="index-Engine-_00232-Settings_002c-Menu-Item-82"></a>Pop up a menu dialog to alter the settings specific to the applicable engine.
727 (The second engine is only accessible once it has been used in Two-Machines mode.)
728 For each parameter the engine allows to be set,
729 a control element will appear in this dialog that can be used to alter the value.
730 Depending on the type of parameter (text string, number, multiple choice,
731 on/off switch, instantaneous signal) the appropriate control will appear,
732 with a description next to it.
733 XBoard has no idea what these values mean; it just passes them on to the engine.
734 How this dialog looks is completely determined by the engine,
735 and XBoard just passes it on to the user.
736 Many engines do not have any parameters that can be set by the user,
737 and in that case the dialog will be empty (except for the OK and cancel buttons).
738 UCI engines usually have many parameters. (But these are only visible with
739 a sufficiently modern version of the Polyglot adapter needed to run UCI engines,
740 e.g. Polyglot 1.4.55b.) For native XBoard engines this is less common.
741 <br><dt>Hint<dd><a name="index-Hint_002c-Menu-Item-83"></a>Displays a move hint from the chess engine.
742 <br><dt>Book<dd><a name="index-Book_002c-Menu-Item-84"></a>Displays a list of possible moves from the chess engine's opening
743 book. The exact format depends on what chess engine you are using.
744 With GNU Chess 4, the first column gives moves, the second column
745 gives one possible response for each move, and the third column shows
746 the number of lines in the book that include the move from the first
747 column. If you select this option and nothing happens, the chess
748 engine is out of its book or does not support this feature.
749 <br><dt>Move Now<dd><a name="index-Move-Now_002c-Menu-Item-85"></a>Forces the chess engine to move immediately. Chess engine mode only.
750 The <kbd>Ctrl-M</kbd> key is a keyboard equivalent.
751 <br><dt>Retract Move<dd><a name="index-Retract-Move_002c-Menu-Item-86"></a>Retracts your last move. In chess engine mode, you can do this only
752 after the chess engine has replied to your move; if the chess engine is still
753 thinking, use ‘<samp><span class="samp">Move Now</span></samp>’ first. In ICS mode, ‘<samp><span class="samp">Retract Move</span></samp>’
754 issues the command ‘<samp><span class="samp">takeback 1</span></samp>’ or ‘<samp><span class="samp">takeback 2</span></samp>’
755 depending on whether it is your opponent's move or yours.
756 The <kbd>Ctrl-X</kbd> key is a keyboard equivalent.
760 <a name="Options-Menu"></a>
762 Next: <a rel="next" accesskey="n" href="#Help-Menu">Help Menu</a>,
763 Previous: <a rel="previous" accesskey="p" href="#Engine-Menu">Engine Menu</a>,
764 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
768 <h3 class="section">3.7 Options Menu</h3>
770 <p><a name="index-Menu_002c-Options-87"></a><a name="index-Options-Menu-88"></a>
772 <dt>Time Control<dd><a name="index-Time-Control_002c-Menu-Item-89"></a>Pops up a sub-menu where you can set the time-control parameters interactively.
773 Allows you to select classical or incremental time controls,
774 set the moves per session, session duration, and time increment.
775 Also allows specification of time-odds factors for one or both engines.
776 If an engine is given a time-odds factor N, all time quota it gets,
777 be it at the beginning of a session or through the time increment or
778 fixed time per move, will be divided by N.
779 The shifted <kbd>Alt+T</kbd> key is a keyboard equivalent.
780 <br><dt>Common Engine<dd><a name="index-Common-Engine_002c-Menu-Item-90"></a>Pops up a sub-menu where you can set some engine parameters common to most engines,
781 such as hash-table size, tablebase cache size, maximum number of processors
782 that SMP engines can use, and where to find the Polyglot adapter needed
783 to run UCI engines under XBoard. The feature that allows setting of these parameters on
784 engines is new since XBoard 4.3.15, so not many XBoard/WinBoard engines respond
785 to it yet, but UCI engines should.
787 <p>It is also possible to specify a GUI opening book here, i.e. an opening
788 book that XBoard consults for any position a playing engine gets in.
789 It then forces the engine to play the book move, rather than to think up its own,
790 if that position is found in the book.
791 The book can switched on and off independently for either engine.
792 The way book moves are chosen can be influenced through the settings of
793 book depth and variety.
794 After both sides have played more moves than the specified depth,
795 the book will no longer be consulted.
796 When the variety is set to 50, moves will be played with the probability
797 specified in the book.
798 When set to 0, only the move(s) with the highest probability will be played.
799 When set to 100, all listed moves will be played with equal pobability.
800 Other settings interpolate between that.
801 The shifted <kbd>Alt+U</kbd> key is a keyboard equivalent.
802 <br><dt>Adjudications<dd><a name="index-Adjudications_002c-Menu-Item-91"></a>Pops up a sub-menu where you can enable or disable various adjudications
803 that XBoard can perform in engine-engine games.
804 The shifted <kbd>Alt+J</kbd> key is a keyboard equivalent.
805 You can instruct XBoard to detect and terminate the game on checkmate
806 or stalemate, even if the engines would not do so, to verify engine
807 result claims (forfeiting engines that make false claims), rather than
808 naively following the engine, to declare draw on positions
809 which can never be won for lack of mating material, (e.g. KBK),
810 or which are impossible to win unless the opponent seeks its own demise
812 For these adjudications to work, ‘<samp><span class="samp">Test Legality</span></samp>’ should be switched on.
813 It is also possible to instruct XBoard to enforce a 50-move or 3-fold-repeat
814 rule and automatically declare draw (after a user-adjustable number of moves
815 or repeats) even if the engines are prepared to go on.
816 It is also possible to have XBoard declare draw on games that seem to drag on
817 forever, or adjudicate a loss if both engines agree (for 3 consecutive moves) that one
818 of them is behind more than a user-adjustable score threshold.
819 For the latter adjudication to work, XBoard should be able to properly understand
820 the engine's scores. To facilitate the latter, you can inform xboard here if
821 the engines report scores from the viewpoint of white, or from that of their own color.
822 <br><dt>Match Game Options<dd><a name="index-Match-Game-Options_002c-Menu-Item-92"></a>Summons a dialog where you can set options important for playing automatic
823 matches between two chess programs
824 (e.g. by using the ‘<samp><span class="samp">Machine Match</span></samp>’ menu item in the ‘<samp><span class="samp">Mode</span></samp>’ menu).
825 You can specify the number of games such a match should last,
826 and the duration of the pause between games
827 (important for some older engines to not have the last move of a previous
828 game be given when the next game has already started).
829 You can also specify a file with opening lines, or a file with initial positions
830 (the <code>loadGameFile</code> and <code>loadPositionFile</code> options),
831 and the number of the game or position to use from these files.
832 Values -1 and -2 of this 'index' convey a special meaning,
833 namely that XBoard should automatically step through all lines or positions
835 With -1 such stepping is done every game; with -2 every two games,
836 so that each line or position is played with both colors before stepping
838 You can have XBoard automatically rewind to the first line or position
839 in the file after the index reaches a certain vaue,
840 which you can also specify here.
841 <br><dt>Load Game Options<dd><a name="index-Load-Game-Options_002c-Menu-Item-93"></a>Summons a dialog where you can set the <code>autoDisplayComment</code> and
842 <code>autoDisplayTags</code> options, (which control popups when viewing loaded games),
843 and specify the rate at which loaded games are auto-played,
844 in seconds per move (which can be a fractional number, like 1.6).
845 <br><dt>Save Game Options<dd><a name="index-ave-Game-Options_002c-Menu-Item-94"></a>Summons a dialog where you can specify the files on which XBoard should
846 automtically save any played or entered games,
847 (the <code>saveGameFile</code> option),
848 or the final position of such games (the <code>savePositionfile</code> option).
849 You can also select 'auto-save' without a file name,
850 in which case XBoard will prompt the user for a file name after each game.
851 You can also set the default value for the PGN Event tag that will
852 be used for each new game you start.
853 Various options for the format of the game can be specified as well,
854 such as whether scores and depths of engine games should be saved as comments,
855 and if a tag with info about the score with which the engine came out of book
857 For Chess, always set the format to PGN, rather than "old save stye"!
858 <br><dt>Game List<dd><a name="index-Game-List-Tags_002c-Menu-Item-95"></a>Pops up a dialog where you can select the PGN tags that should appear
859 on the lines in the game list, and their order.
860 <br><dt>Sound Options<dd><a name="index-Sound-Options_002c-Menu-Item-96"></a>Summons a dialog where you can specify the sounds that should accompany
861 various events that can occur XBoard.
862 Most events are only relevant to ICS play,
863 but the move sound is an important exception.
864 For each event listed in the dialog,
865 you can select a standard sound from a menu.
866 You can also select a user-supplied sound file,
867 by typing its name into the designated text-edit field first,
868 and then selecting "Above WAV File" from the menu for the event.
869 A dummy event has been provided for trying out the sounds with the
870 "play" button next to it.
871 The directory with standard sounds, and the external program for playing
872 the sounds can be specified too, but normally you would not touch these
873 once XBoard is properly installed.
874 <dt>Move Sound<dd><a name="index-Move-Sound_002c-Menu-Item-97"></a>When a move sound other than 'None' is selected,
875 XBoard alerts you by playing a sound
876 after each of your opponent's moves (or after every
877 move if you are observing a game on the Internet Chess Server).
878 The sound is not played after moves you make or moves read from a
880 If you turn on this option when using XBoard with the Internet
881 Chess Server, you will probably want to give the
882 <kbd>set bell 0</kbd>
883 command to the ICS, since otherwise the ICS will ring the terminal bell
884 after every move (not just yours). (The <samp><span class="file">.icsrc</span></samp> file
885 is a good place for this; see <a href="#ICS-options">ICS options</a>.)
886 <br><dt>General Options<dd><a name="index-General-Options_002c-Menu-Item-98"></a>The following items to set option values appear in the dialog
887 summoned by the general Options menu item.
888 <dt>Always Queen<dd><a name="index-Always-Queen_002c-Menu-Item-99"></a>If this option is off, XBoard brings up a dialog
889 box whenever you move a pawn to the last rank, asking what piece
890 you want to promote it to. If the option is true, your pawns are
891 always promoted to queens. Your opponent can still under-promote.
892 The shifted <kbd>Ctrl-Q</kbd> key is a keyboard equivalent.
893 <dt>Animate Dragging<dd><a name="index-Animate-Dragging_002c-Menu-Item-100"></a>If Animate Dragging is on, while you are dragging a piece with the
894 mouse, an image of the piece follows the mouse cursor.
895 If Animate Dragging is off, there is no visual feedback while you are
896 dragging a piece, but if Animate Moving is on, the move will be
897 animated when it is complete.
898 <dt>Animate Moving<dd><a name="index-Animate-Moving_002c-Menu-Item-101"></a>If Animate Moving is on, all piece moves are animated. An image of the
899 piece is shown moving from the old square to the new square when the
900 move is completed (unless the move was already animated by Animate Dragging).
901 If Animate Moving is off, a moved piece instantly disappears from its
902 old square and reappears on its new square when the move is complete.
903 The shifted <kbd>Ctrl-A</kbd> key is a keyboard equivalent.
904 <dt>Auto Flag<dd><a name="index-Auto-Flag_002c-Menu-Item-102"></a>If this option is on and one player runs out of time
907 will automatically call his flag, claiming a win on time.
908 The shifted <kbd>Ctrl-F</kbd> key is a keyboard equivalent.
909 In ICS mode, Auto Flag will only call your opponent's flag, not yours,
910 and the ICS may award you a draw instead of a win if you have
911 insufficient mating material. In local chess engine mode,
913 may call either player's flag and will not take material into account (?).
914 <dt>Auto Flip View<dd><a name="index-Auto-Flip-View_002c-Menu-Item-103"></a>If the Auto Flip View option is on when you start a game, the board
915 will be automatically oriented so that your pawns move from the bottom
916 of the window towards the top.
918 <p>If you are playing a game on an ICS, the board is always
919 oriented at the start of the game so that your pawns move from
920 the bottom of the window towards the top. Otherwise, the starting
921 orientation is determined by the <code>flipView</code> command line option;
922 if it is false (the default), White's pawns move from bottom to top
923 at the start of each game; if it is true, Black's pawns move from
924 bottom to top. See <a href="#User-interface-options">User interface options</a>.
925 <dt>Blindfold<dd><a name="index-Blindfold_002c-Menu-Item-104"></a>If this option is on, XBoard displays the board as usual but does
926 not display pieces or move highlights. You can still move in the
927 usual way (with the mouse or by typing moves in ICS mode), even though
928 the pieces are invisible.
929 <dt>Drop Menu<dd><a name="index-Drop-Menu_002c-Menu-Item-105"></a>Controls if right-clicking the board in crazyhouse / bughouse
930 will pop up a menu to drop a piece on the clicked square
931 (old, deprecated behavior)
932 or allow you to step through an engine PV
933 (new, recommended behavior).
934 <dt>Highlight Dragging<dd><a name="index-Highlight-Dragging_002c-Menu-Item-106"></a>If Highlight Dragging is on, and the option -showTargetSquares is also on
935 in the settings file, all squares a piece that is 'picked up' with the mouse
936 can legally move to are highighted with a fat colored dot in the
937 highlightColor (non-captures) or premoveHighlightColor (captures).
938 Legality testing must be on for XBoard to know how the piece moves.
939 <dt>Highlight Last Move<dd><a name="index-Highlight-Last-Move_002c-Menu-Item-107"></a>If Highlight Last Move is on, after a move is made, the starting and
940 ending squares remain highlighted. In addition, after you use Backward
941 or Back to Start, the starting and ending squares of the last move to
942 be unmade are highlighted.
943 <dt>Highlight with Arrow<dd><a name="index-Highlight-with-Arrow_002c-Menu-Item-108"></a>Causes the highlighting described in Highlight Last Move to be done
944 by drawing an arrow between the highlighted squares,
945 so that it is visible even when the width of the grid lines is set to zero.
946 <dt>One-Click Moving<dd><a name="index-One_002dClick-Moving_002c-Menu-Item-109"></a>If this option is on, XBoard does not wait for you to click both the
947 from- and the to-square, or drag the piece, but performs a move as soon
948 as it is uniqely specified.
949 This applies to clicking an own piece that only has a single legal move,
950 clicking an empty square or opponent piece where only one of your pieces
951 can move (or capture) to.
952 Furthermore, a double-click on a piece that can only make a single capture
953 will cause that capture to be made.
954 Promoting a Pawn by clicking its to-square will suppress the promotion
955 popup, and make it promote to Queen.
956 <dt>Periodic Updates<dd><a name="index-Periodic-Updates_002c-Menu-Item-110"></a>If this option is off (or if
957 you are using a chess engine that does not support periodic updates),
959 will only be updated when the analysis changes. If this option is
960 on, the Analysis Window will be updated every two seconds.
961 <dt>Ponder Next Move<dd><a name="index-Ponder-Next-Move_002c-Menu-Item-111"></a>If this option is off, the chess engine will think only when it is on
962 move. If the option is on, the engine will also think while waiting
963 for you to make your move.
964 The shifted <kbd>Ctrl-P</kbd> key is a keyboard equivalent.
965 <dt>Popup Exit Message<dd><a name="index-Popup-Exit-Message_002c-Menu-Item-112"></a>If this option is on, when XBoard wants to display a message just
966 before exiting, it brings up a modal dialog box and waits for you to
967 click OK before exiting. If the option is off, XBoard prints the
968 message to standard error (the terminal) and exits immediately.
969 <dt>Popup Move Errors<dd><a name="index-Popup-Move-Errors_002c-Menu-Item-113"></a>If this option is off, when you make an error in moving (such as
970 attempting an illegal move or moving the wrong color piece), the
971 error message is displayed in the message area. If the option is
972 on, move errors are displayed in small pop-up windows like other errors.
973 You can dismiss an error pop-up either by clicking its OK button or by
974 clicking anywhere on the board, including down-clicking to start a move.
975 <dt>Show Coords<dd><a name="index-Show-Coords_002c-Menu-Item-114"></a>If this option is on, XBoard displays algebraic coordinates
976 along the board's left and bottom edges.
977 <dt>Hide Thinking<dd><a name="index-Hide-Thinking_002c-Menu-Item-115"></a>If this option is off, the chess engine's notion of the score and best
978 line of play from the current position is displayed as it is
979 thinking. The score indicates how many pawns ahead (or if negative,
980 behind) the chess engine thinks it is. In matches between two
981 machines, the score is prefixed by ‘<samp><span class="samp">W</span></samp>’ or ‘<samp><span class="samp">B</span></samp>’ to indicate
982 whether it is showing White's thinking or Black's, and only the thinking
983 of the engine that is on move is shown.
984 The shifted <kbd>Ctrl-H</kbd> key is a keyboard equivalent.
985 <dt>Test Legality<dd><a name="index-Test-Legality_002c-Menu-Item-116"></a>If this option is on, XBoard tests whether the moves you try to make
986 with the mouse are legal and refuses to let you make an illegal move.
987 The shifted <kbd>Ctrl-L</kbd> key is a keyboard equivalent.
988 Moves loaded from a file with ‘<samp><span class="samp">Load Game</span></samp>’ are also checked. If
989 the option is off, all moves are accepted, but if a local chess engine
990 or the ICS is active, they will still reject illegal moves. Turning
991 off this option is useful if you are playing a chess variant with
992 rules that XBoard does not understand. (Bughouse, suicide, and wild
993 variants where the king may castle after starting on the d file are
994 generally supported with Test Legality on.)
995 <dt>Flash Moves<dt>Flash Rate<dd><a name="index-Flash-Moves_002c-Menu-Item-117"></a><a name="index-Flash-Rate_002c-Menu-Item-118"></a>If this option is non-zero, whenever a move is completed,
996 the moved piece flashes the specified number of times.
997 The flash-rate setting determines how rapidly this flashing occurs.
998 <dt>Animation Speed<dd><a name="index-Animation-Speed_002c-Menu-Item-119"></a>Determines the duration (in msec) of an animation step,
999 when ‘<samp><span class="samp">Animate Moving</span></samp>’ is swiched on.
1001 <br><dt>ICS Options<dd><a name="index-ICS-Options_002c-Menu-Item-120"></a>The following options occur in a dialog summoned by the
1002 ICS Options menu item.
1003 <dt>Auto Kibitz<dd><a name="index-Auto-Kibitz_002c-Menu-Item-121"></a>Setting this option when playingwith or aginst a chess program on an ICS
1004 will cause the last line of thinking output of the engine before its move
1005 to be sent to the ICS in a kibitz command.
1006 In addition, any kibitz message received through the ICS from
1007 an opponent chess program will be diverted to the engine-output window,
1008 (and suppressed in the console),
1009 where you can play through its PV by right-clicking it.
1010 <dt>Auto Comment<dd><a name="index-Auto-Comment_002c-Menu-Item-122"></a>If this option is on, any remarks made on ICS while you are observing or
1011 playing a game are recorded as a comment on the current move. This includes
1012 remarks made with the ICS commands <kbd>say</kbd>, <kbd>tell</kbd>, <kbd>whisper</kbd>,
1013 and <kbd>kibitz</kbd>.
1014 Limitation: remarks that you type yourself are not recognized;
1015 XBoard scans only the output from ICS, not the input you type to it.
1016 <dt>Auto Observe<dd><a name="index-Auto-Observe_002c-Menu-Item-123"></a>If this option is on and you add a player to your <code>gnotify</code>
1017 list on ICS, XBoard will automatically observe all of that
1018 player's games, unless you are doing something else (such as
1019 observing or playing a game of your own) when one starts.
1020 The games are displayed
1021 from the point of view of the player on your gnotify list; that is, his
1022 pawns move from the bottom of the window towards the top.
1023 Exceptions: If both players in a game are on your gnotify list, if
1025 <code>highlight</code>
1026 variable is set to 0, or if the ICS you are using does not
1027 properly support observing from Black's point of view,
1028 you will see the game from White's point of view.
1029 <dt>Auto Raise Board<dd><a name="index-Auto-Raise-Board_002c-Menu-Item-124"></a>If this option is on, whenever a new game begins, the chessboard window
1030 is deiconized (if necessary) and raised to the top of the stack of windows.
1031 <dt>Auto Save<dd><a name="index-Auto-Save_002c-Menu-Item-125"></a>If this option is true, at the end of every game XBoard prompts
1032 you for a file name and appends a record of the game to the file
1034 Disabled if the <code>saveGameFile</code> command-line
1035 option is set, as in that case all games are saved to the specified file.
1036 See <a href="#Load-and-Save-options">Load and Save options</a>.
1037 <dt>Background Observe<dd><a name="index-Background-Observe_002c-Menu-Item-126"></a>Setting this option will make XBoard suppress display of any boards
1038 from observed games while you are playing.
1039 In stead the last such board will be remembered,
1040 and shown to you when you right-click the board.
1041 This allows you to peek at your bughouse partner's game when you want,
1042 without disturbing your own game too much.
1043 <dt>Dual Board<dd><a name="index-Dual-Board_002c-Menu-Item-127"></a>Setting this option in combination with ‘<samp><span class="samp">Background Observe</span></samp>’
1044 will display boards of observed games while you are playing
1045 on a second board next to that of your own game.
1046 <dt>Get Move List<dd><a name="index-Get-Move-List_002c-Menu-Item-128"></a>If this option is on, whenever XBoard
1047 receives the first board of a new ICS game (or a different game from
1048 the one it is currently displaying), it
1049 retrieves the list of past moves from the ICS.
1050 You can then review the moves with the ‘<samp><span class="samp">Forward</span></samp>’ and ‘<samp><span class="samp">Backward</span></samp>’
1052 or save them with ‘<samp><span class="samp">Save Game</span></samp>’. You might want to
1053 turn off this option if you are observing several blitz games at once,
1054 to keep from wasting time and network bandwidth fetching the move lists over
1056 When you turn this option on from the menu, XBoard
1057 immediately fetches the move list of the current game (if any).
1058 <dt>Quiet Play<dd><a name="index-Quiet-Play_002c-Menu-Item-129"></a>If this option is on, XBoard will automatically issue an ICS
1059 <kbd>set shout 0</kbd>
1060 command whenever you start a game and a
1061 <kbd>set shout 1</kbd>
1062 command whenever you finish one. Thus, you will not be distracted
1063 by shouts from other ICS users while playing.
1064 <dt>Seek Graph<dd><a name="index-Seek-Graph_002c-Menu-Item-130"></a>Setting this option will cause XBoard to display an graph of
1065 currently active seek ads when you left-click the board
1066 while idle and logged on to an ICS.
1067 <dt>Auto-Refresh Seek Graph<dd><a name="index-Auto_002dRefresh-Seek-Graph_002c-Menu-Item-131"></a>In combination with the ‘<samp><span class="samp">Seek Graph</span></samp>’ option this
1068 will cause automatic update of the seek graph while it is up.
1069 This only works on FICS and ICS,
1070 and requires a lot of bandwidth on a busy server.
1071 <dt>Premove<dt>Premove White<dt>Premove Black<dt>First White Move<dt>First Black Move<dd><a name="index-Premove_002c-Menu-Item-132"></a><a name="index-Premove-White_002c-Menu-Item-133"></a><a name="index-Premove-Black_002c-Menu-Item-134"></a><a name="index-First-White-Move_002c-Menu-Item-135"></a><a name="index-First-Black-Move_002c-Menu-Item-136"></a>If this option is on while playing a game on an ICS, you can register
1072 your next planned move before it is your turn. Move the piece with
1073 the mouse in the ordinary way, and the starting and ending squares
1074 will be highlighted with a special color (red by default). When it is
1075 your turn, if your registered move is legal, XBoard will send it to
1076 ICS immediately; if not, it will be ignored and you can make a
1077 different move. If you change your mind about your premove, either
1078 make a different move, or double-click on any piece to cancel the move
1081 <p>You can also enter premoves for the first white and black moves
1083 <dt>ICS Alarm<dt>ICS Alarm Time<dd><a name="index-ICS-Alarm_002c-Menu-Item-137"></a><a name="index-ICS-Alarm-Time_002c-Menu-Item-138"></a>When this option is on, an alarm sound is played when your clock
1084 counts down to the icsAlarmTime in an ICS game.
1085 (By default, the time is 5 seconds, but you can pecify other values
1086 with the Alarm Time spin control.)
1087 For games with time controls that include an increment, the
1088 alarm will sound each time the clock counts down to the icsAlarmTime.
1089 By default, the alarm sound is the terminal bell, but on some systems
1090 you can change it to a sound file using the soundIcsAlarm option; see
1092 <dt>Colorize Messages<dd><a name="index-Colorize-Messages_002c-Menu-Item-139"></a>Ticking this options causes various types of ICS messages do be
1093 displayed with different foreground or background colors in the console.
1094 The colors can be individually selected for each type,
1095 through the accompanying text edits.
1097 <br><dt>Save Settings Now<dd><a name="index-Save-Settings-Now_002c-Menu-Item-140"></a>Selecting this menu item causes the current XBoard settings to be
1098 written to the settings file, so they will also apply in future sessions.
1099 Note that some settings are 'volatile', and are not saved,
1100 because XBoard considers it too unlikely that you want those to apply
1102 In particular this applies to the Chess program names, and all options
1103 giving information on those Chess programs (such as their directory,
1104 if they have their own opening book, if they are UCI or native XBoard),
1105 or the variant you are playing.
1106 Such options would still be understood when they appear in the settings
1107 file in case they were put there with the aid of a text editor, but they
1108 would disappear from the file as soon as you save the settings.
1109 <br><dt>Save Settings on Exit<dd><a name="index-Save-Settings-on-Exit_002c-Menu-Item-141"></a>Setting this option has no immediate effect, but causes the settings
1110 to be saved when you quit XBoard. What happens then is otherwise
1111 identical to what happens when you use select "Save Settings Now",
1116 <a name="Help-Menu"></a>
1118 Next: <a rel="next" accesskey="n" href="#Keys">Keys</a>,
1119 Previous: <a rel="previous" accesskey="p" href="#Options-Menu">Options Menu</a>,
1120 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
1124 <h3 class="section">3.8 Help Menu</h3>
1126 <p><a name="index-Menu_002c-Help-142"></a><a name="index-Help-Menu-143"></a>
1128 <dt>Info XBoard<dd><a name="index-Info-XBoard_002c-Menu-Item-144"></a>Displays the XBoard documentation in info format. For this feature to
1129 work, you must have the GNU info program installed on your system, and
1130 the file <samp><span class="file">xboard.info</span></samp> must either be present in the current
1131 working directory, or have been installed by the ‘<samp><span class="samp">make install</span></samp>’
1132 command when you built XBoard.
1133 <br><dt>Man XBoard<dd><a name="index-Man-XBoard_002c-Menu-Item-145"></a>Displays the XBoard documentation in man page format.
1134 The <kbd>F1</kbd> key is a keyboard equivalent. For this
1135 feature to work, the file <samp><span class="file">xboard.6</span></samp> must have been installed by
1136 the ‘<samp><span class="samp">make install</span></samp>’ command when you built XBoard, and the
1137 directory it was placed in must be on the search path for your
1138 system's ‘<samp><span class="samp">man</span></samp>’ command.
1139 <br><dt>About XBoard<dd><a name="index-About-XBoard_002c-Menu-Item-146"></a>Shows the current XBoard version number.
1145 Previous: <a rel="previous" accesskey="p" href="#Help-Menu">Help Menu</a>,
1146 Up: <a rel="up" accesskey="u" href="#Menus">Menus</a>
1150 <h3 class="section">3.9 Other Shortcut Keys</h3>
1152 <p><a name="index-Keys-147"></a><a name="index-Shortcut-keys-148"></a>
1154 <dt>Iconize<dd>Pressing the <kbd>-</kbd> key iconizes XBoard. The graphical
1155 icon displays a white knight if it is White's move, or a black knight
1156 if it is Black's move. If your X window manager displays only text
1157 icons, not graphical ones, check its documentation; there is probably
1158 a way to enable graphical icons. If you get black and white reversed,
1159 we would like to hear about it; see <a href="#Problems">Problems</a> below for
1160 instructions on how to report this problem.
1161 <br><dt>Load Next Game<dd><a name="index-Load-Next-Game_002c-Menu-Item-149"></a>Loads the next game from the last game record file you loaded.
1162 The <kbd>Alt+PgDn</kbd> key is a keyboard equivalent.
1163 <br><dt>Load Previous Game<dd><a name="index-Load-Previous-Game_002c-Menu-Item-150"></a>Loads the previous game from the last game record file you
1164 loaded. The <kbd>Alt+PgUp</kbd> key is a keyboard equivalent.
1165 Not available if the last game was loaded from a pipe.
1166 <br><dt>Reload Same Game<dd><a name="index-Reload-Same-Game_002c-Menu-Item-151"></a>Reloads the last game you loaded.
1167 Not available if the last game was loaded from a pipe.
1168 <br><dt>Reload Same Position<dd><a name="index-Reload-Same-Position_002c-Menu-Item-152"></a>Reloads the last position you loaded.
1169 Not available if the last position was loaded from a pipe.
1172 <p>You can add or remove shortcut keys using the X resources
1173 <code>form.translations</code>. Here is an example of what would go in your
1174 <samp><span class="file">.Xresources</span></samp> file:
1176 <pre class="example"> XBoard*form.translations: \
1177 Shift<Key>?: AboutGameProc() \n\
1178 <Key>y: AcceptProc() \n\
1179 <Key>n: DeclineProc() \n\
1180 <Key>i: NothingProc()
1182 <p class="noindent">Binding a key to <code>NothingProc</code> makes it do nothing, thus removing
1183 it as a shortcut key. The XBoard commands that can be bound to keys
1186 <pre class="example"> AbortProc, AboutGameProc, AboutProc, AcceptProc, AdjournProc,
1187 AlwaysQueenProc, AnalysisModeProc, AnalyzeFileProc,
1188 AnimateDraggingProc, AnimateMovingProc, AutobsProc, AutoflagProc,
1189 AutoflipProc, AutoraiseProc, AutosaveProc, BackwardProc,
1190 BlindfoldProc, BookProc, CallFlagProc, CopyGameProc, CopyPositionProc,
1191 DebugProc, DeclineProc, DrawProc, EditCommentProc, EditGameProc,
1192 EditPositionProc, EditTagsProc, EnterKeyProc, FlashMovesProc,
1193 FlipViewProc, ForwardProc, GetMoveListProc, HighlightLastMoveProc,
1194 HintProc, Iconify, IcsAlarmProc, IcsClientProc, IcsInputBoxProc,
1195 InfoProc, LoadGameProc, LoadNextGameProc, LoadNextPositionProc,
1196 LoadPositionProc, LoadPrevGameProc, LoadPrevPositionProc,
1197 LoadSelectedProc, MachineBlackProc, MachineWhiteProc, MailMoveProc,
1198 ManProc, MoveNowProc, MoveSoundProc, NothingProc, OldSaveStyleProc,
1199 PasteGameProc, PastePositionProc, PauseProc, PeriodicUpdatesProc,
1200 PonderNextMoveProc, PopupExitMessageProc, PopupMoveErrorsProc,
1201 PremoveProc, QuietPlayProc, QuitProc, ReloadCmailMsgProc,
1202 ReloadGameProc, ReloadPositionProc, RematchProc, ResetProc,
1203 ResignProc, RetractMoveProc, RevertProc, SaveGameProc,
1204 SavePositionProc, ShowCoordsProc, ShowGameListProc, ShowThinkingProc,
1205 StopExaminingProc, StopObservingProc, TestLegalityProc, ToEndProc,
1206 ToStartProc, TrainingProc, TruncateGameProc, and TwoMachinesProc.
1209 <a name="Options"></a>
1211 Next: <a rel="next" accesskey="n" href="#Chess-Servers">Chess Servers</a>,
1212 Previous: <a rel="previous" accesskey="p" href="#Menus">Menus</a>,
1213 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
1217 <h2 class="chapter">4 Options</h2>
1219 <p><a name="index-Options-153"></a><a name="index-Options-154"></a>
1220 This section documents the command-line options to XBoard. You can
1221 set these options in two ways: by typing them on the shell command
1222 line you use to start XBoard, or by setting them as X resources
1223 (typically in your <samp><span class="file">.Xresources</span></samp> file). Many of the options
1224 cannot be changed while XBoard is running; others set the initial
1225 state of items that can be changed with the <a href="#Options">Options</a> menu.
1227 <p>Most of the options have both a long name and a short name. To turn a
1228 boolean option on or off from the command line, either give its long
1229 name followed by the value true or false
1230 (‘<samp><span class="samp">-longOptionName true</span></samp>’), or give just the short name to turn the
1231 option on (‘<samp><span class="samp">-opt</span></samp>’), or the short name preceded by ‘<samp><span class="samp">x</span></samp>’ to
1232 turn the option off (‘<samp><span class="samp">-xopt</span></samp>’). For options that take strings or
1233 numbers as values, you can use the long or short option names
1236 <p>Each option corresponds to an X resource with the same name, so
1237 if you like, you can set options in your <samp><span class="file">.Xresources</span></samp> file
1238 or in a file named <samp><span class="file">XBoard</span></samp> in your home directory.
1239 For options that have two names, the longer one is the name of
1240 the corresponding X resource; the short name is not recognized.
1241 To turn a boolean option on or off as an
1242 X resource, give its long name followed by the value
1243 true or false (‘<samp><span class="samp">XBoard*longOptionName: true</span></samp>’).
1246 <li><a accesskey="1" href="#Chess-engine-options">Chess engine options</a>: Controlling the chess engine.
1247 <li><a accesskey="2" href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a>: Setting some very common engine parameters
1248 <li><a accesskey="3" href="#ICS-options">ICS options</a>: Connecting to and using ICS.
1249 <li><a accesskey="4" href="#Load-and-Save-options">Load and Save options</a>: Input/output options.
1250 <li><a accesskey="5" href="#User-interface-options">User interface options</a>: Look and feel options.
1251 <li><a accesskey="6" href="#Adjudication-Options">Adjudication Options</a>: Control adjudication of engine-engine games.
1252 <li><a accesskey="7" href="#Other-options">Other options</a>: Miscellaneous.
1256 <a name="Chess-engine-options"></a>
1258 Next: <a rel="next" accesskey="n" href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a>,
1259 Up: <a rel="up" accesskey="u" href="#Options">Options</a>
1263 <h3 class="section">4.1 Chess Engine Options</h3>
1265 <p><a name="index-options_002c-Chess-engine-155"></a><a name="index-Chess-engine-options-156"></a>
1267 <dt>-tc or -timeControl minutes[:seconds]<dd><a name="index-tc_002c-option-157"></a><a name="index-timeControl_002c-option-158"></a>Each player begins with his clock set to the <code>timeControl</code> period.
1269 The additional options <code>movesPerSession</code> and <code>timeIncrement</code>
1270 are mutually exclusive.
1271 <br><dt>-mps or -movesPerSession moves<dd><a name="index-mps_002c-option-159"></a><a name="index-movesPerSession_002c-option-160"></a>When both players have made <code>movesPerSession</code> moves, a
1272 new <code>timeControl</code> period is added to both clocks. Default: 40 moves.
1273 <br><dt>-inc or -timeIncrement seconds<dd><a name="index-inc_002c-option-161"></a><a name="index-timeIncrement_002c-option-162"></a>If this option is specified, <code>movesPerSession</code> is ignored.
1274 Instead, after each player's move, <code>timeIncrement</code> seconds are
1276 Use ‘<samp><span class="samp">-inc 0</span></samp>’ if you want to require the entire
1277 game to be played in one <code>timeControl</code> period, with no increment.
1278 Default: -1, which specifies <code>movesPerSession</code> mode.
1279 <br><dt>-clock/-xclock or -clockMode true/false<dd><a name="index-clock_002c-option-163"></a><a name="index-clockMode_002c-option-164"></a>Determines whether or not to display the chess clocks. If clockMode is
1280 false, the clocks are not shown, but the side that is to play next
1281 is still highlighted. Also, unless <code>searchTime</code>
1282 is set, the chess engine still keeps track of the clock time and uses it to
1283 determine how fast to make its moves.
1284 <br><dt>-st or -searchTime minutes[:seconds]<dd><a name="index-st_002c-option-165"></a><a name="index-searchTime_002c-option-166"></a>Tells the chess engine to spend at most the given amount of time
1285 searching for each of its moves. Without this option, the chess engine
1286 chooses its search time based on the number of moves and amount
1287 of time remaining until the next time control.
1288 Setting this option also sets clockMode to false.
1289 <br><dt>-depth or -searchDepth number<dd><a name="index-sd_002c-option-167"></a><a name="index-searchDepth_002c-option-168"></a>Tells the chess engine to look ahead at most the given number of moves
1290 when searching for a move to make. Without this option, the chess
1291 engine chooses its search depth based on the number of moves and
1292 amount of time remaining until the next time control. With the option,
1293 the engine will cut off its search early if it reaches the specified depth.
1294 <br><dt>-firstNPS number<dt>-secondNPS number<dd><a name="index-firstNPS_002c-option-169"></a><a name="index-secondNPS_002c-option-170"></a>Tells the chess engine to use an internal time standard based on its node count,
1295 rather then wall-clock time, to make its timing decisions.
1296 The time in virtual seconds should be obtained by dividing the node count
1297 through the given number, like the number was a rate in nodes per second.
1298 Xboard will manage the clocks in accordance with this, relying on the number
1299 of nodes reported by the engine in its thinking output. If the given number equals zero,
1300 it can obviously not be used to convert nodes to seconds, and the time reported
1301 by the engine is used to decrement the XBoard clock in stead. The engine is supposed to
1302 report in CPU time it uses, rather than wall-clock time, in this mode. This option
1303 can provide fairer conditions for engine-engine matches on heavily loaded machines,
1304 or with very fast games (where the wall clock is too inaccurate).
1305 <code>showThinking</code> must be on for this option to work. Default: -1 (off).
1306 Not many engines might support this yet!
1307 <br><dt>-firstTimeOdds factor<dt>-secondTimeOdds factor<dd><a name="index-firstTimeOdds_002c-option-171"></a><a name="index-secondTimeOdds_002c-option-172"></a>Reduces the time given to the mentioned engine by the given factor.
1308 If pondering is off, the effect is indistinguishable from what would happen
1309 if the engine was running on an n-times slower machine. Default: 1.
1310 <br><dt>-timeOddsMode mode<dd><a name="index-timeOddsMode_002c-option-173"></a>This option determines how the case is handled where both engines have a time-odds handicap.
1311 If mode=1, the engine that gets the most time will always get the nominal time,
1312 as specified by the time-control options, and its opponent's time is renormalized accordingly.
1313 If mode=0, both play with reduced time. Default: 0.
1314 <br><dt>-hideThinkingFromHuman true/false<dd>Controls the Hide Thinking option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1315 (Replaces the Show-Thinking option of older xboard versions.)
1316 <br><dt>-thinking/-xthinking or -showThinking true/false<dd><a name="index-thinking_002c-option-174"></a><a name="index-showThinking_002c-option-175"></a>Forces the engine to send thinking output to xboard.
1317 Used to be the only way to control if thinking output was displayed
1318 in older xboard versions,
1319 but as the thinking output in xboard 4.3 is also used for several other
1320 purposes (adjudication, storing in PGN file) the display of it is now controlled
1321 by the new option Hide Thinking. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1322 (But if xboard needs the thinking output for some purpose,
1323 it makes the engine send it despite the setting of this option.)
1324 <br><dt>-ponder/-xponder or -ponderNextMove true/false<dd><a name="index-ponder_002c-option-176"></a><a name="index-ponderNextMove_002c-option-177"></a>Sets the Ponder Next Move menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1325 <br><dt>-smpCores number<dd>Specifies the maximum number of CPUs an SMP engine is allowed to use.
1326 Only works for engines that support the XBoard/WinBoard-protocol cores feature.
1327 <br><dt>-mg or -matchGames n<dd><a name="index-mg_002c-option-178"></a><a name="index-matchGames_002c-option-179"></a>Automatically runs an n-game match between two chess engines,
1328 with alternating colors.
1329 If the <code>loadGameFile</code> or <code>loadPositionFile</code> option is set,
1331 starts each game with the given opening moves or the given position;
1332 otherwise, the games start with the standard initial chess position.
1333 If the <code>saveGameFile</code> option is set, a move record for the
1334 match is appended to the specified file. If the <code>savePositionFile</code>
1335 option is set, the final position reached in each game of the match is appended
1336 to the specified file. When the match is over, XBoard
1337 displays the match score and exits. Default: 0 (do not run a match).
1338 <br><dt>-mm/-xmm or -matchMode true/false<dd><a name="index-mm_002c-option-180"></a><a name="index-matchMode_002c-option-181"></a>Setting <code>matchMode</code> to true is equivalent to setting
1339 <code>matchGames</code> to 1.
1340 <br><dt>-sameColorGames n<dd><a name="index-sameColorGames_002c-option-182"></a>Automatically runs an n-game match between two chess engines,
1341 without alternating colors.
1342 Otherwise the same applies as for the ‘<samp><span class="samp">-matchGames</span></samp>’ option,
1343 over which it takes precedence if both are specified. (See there.)
1344 Default: 0 (do not run a match).
1345 <br><dt>-fcp or -firstChessProgram program<dd><a name="index-fcp_002c-option-183"></a><a name="index-firstChessProgram_002c-option-184"></a>Name of first chess engine.
1346 Default: <samp><span class="file">Fairy-Max</span></samp>.
1347 <br><dt>-scp or -secondChessProgram program<dd><a name="index-scp_002c-option-185"></a><a name="index-secondChessProgram_002c-option-186"></a>Name of second chess engine, if needed.
1348 A second chess engine is started only in Two Machines (match) mode.
1349 Default: <samp><span class="file">Fairy-Max</span></samp>.
1350 <br><dt>-fb/-xfb or -firstPlaysBlack true/false<dd><a name="index-fb_002c-option-187"></a><a name="index-firstPlaysBlack_002c-option-188"></a>In games between two chess engines, firstChessProgram normally plays
1351 white. If this option is true, firstChessProgram plays black. In a
1352 multi-game match, this option affects the colors only for the first
1353 game; they still alternate in subsequent games.
1354 <br><dt>-fh or -firstHost host<dt>-sh or -secondHost host<dd><a name="index-fh_002c-option-189"></a><a name="index-firstHost_002c-option-190"></a><a name="index-sh_002c-option-191"></a><a name="index-secondHost_002c-option-192"></a>Hosts on which the chess engines are to run. The default for
1355 each is <samp><span class="file">localhost</span></samp>. If you specify another host, XBoard
1356 uses <samp><span class="file">rsh</span></samp> to run the chess engine there. (You can substitute a
1357 different remote shell program for rsh using the <code>remoteShell</code>
1358 option described below.)
1359 <br><dt>-fd or -firstDirectory dir<dt>-sd or -secondDirectory dir<dd><a name="index-fd_002c-option-193"></a><a name="index-firstDirectory_002c-option-194"></a><a name="index-sd_002c-option-195"></a><a name="index-secondDirectory_002c-option-196"></a>Working directories in which the chess engines are to be run.
1360 The default is "", which means to run the chess engine
1361 in the same working directory as XBoard
1362 itself. (See the CHESSDIR environment variable.)
1363 This option is effective only when the chess engine is being run
1364 on the local host; it does not work if the engine is run remotely
1365 using the -fh or -sh option.
1366 <br><dt>-initString string<dt>-secondInitString string<dd><a name="index-initString_002c-option-197"></a><a name="index-secondInitString_002c-option-198"></a>The string that is sent to initialize each chess engine for a new game.
1369 <pre class="example"> new
1372 <p class="noindent">Setting this option from the command line is tricky, because you must
1373 type in real newline characters, including one at the very end.
1374 In most shells you can do this by
1375 entering a ‘<samp><span class="samp">\</span></samp>’ character followed by a newline. It is easier to set
1376 the option from your <samp><span class="file">.Xresources</span></samp> file; in that case you can
1377 include the character sequence ‘<samp><span class="samp">\n</span></samp>’ in the string, and it will
1378 be converted to a newline.
1380 <p>If you change this option, don't remove the ‘<samp><span class="samp">new</span></samp>’
1381 command; it is required by all chess engines to
1384 <p>You can remove the ‘<samp><span class="samp">random</span></samp>’ command if you like; including it
1385 causes GNU Chess 4 to randomize its move selection slightly so that it
1386 doesn't play the same moves in every game. Even without
1387 ‘<samp><span class="samp">random</span></samp>’, GNU Chess 4 randomizes its choice of moves from its
1388 opening book. Many other chess engines ignore this command entirely
1389 and always (or never) randomize.
1391 <p>You can also try adding other commands to the initString; see the
1392 documentation of the chess engine you are using for details.
1393 <br><dt>-firstComputerString string<dt>-secondComputerString string<dd><a name="index-firstComputerString_002c-option-199"></a><a name="index-secondComputerString_002c-option-200"></a>The string that is sent to the chess engine if its opponent is another
1394 computer chess engine. The default is ‘<samp><span class="samp">computer\n</span></samp>’. Probably the
1395 only useful alternative is the empty string (‘<samp></samp>’), which keeps the
1396 engine from knowing that it is playing another computer.
1397 <br><dt>-reuse/-xreuse or -reuseFirst true/false<dt>-reuse2/-xreuse2 or -reuseSecond true/false<dd><a name="index-reuse_002c-option-201"></a><a name="index-reuseFirst_002c-option-202"></a><a name="index-reuse2_002c-option-203"></a><a name="index-reuseSecond_002c-option-204"></a>If the option is false,
1398 XBoard kills off the chess engine after every game and starts
1399 it again for the next game.
1400 If the option is true (the default),
1401 XBoard starts the chess engine only once
1402 and uses it repeatedly to play multiple games.
1403 Some old chess engines may not work properly when
1404 reuse is turned on, but otherwise games will start faster if it is left on.
1405 <br><dt>-firstProtocolVersion version-number<dt>-secondProtocolVersion version-number<dd><a name="index-firstProtocolVersion_002c-option-205"></a><a name="index-secondProtocolVersion_002c-option-206"></a>This option specifies which version of the chess engine communication
1406 protocol to use. By default, version-number is 2. In version 1, the
1407 "protover" command is not sent to the engine; since version 1 is a
1408 subset of version 2, nothing else changes. Other values for
1409 version-number are not supported.
1410 <br><dt>-firstScoreAbs true/false<dt>-secondScoreAbs true/false<dd><a name="index-firstScoreAbs_002c-option-207"></a><a name="index-secondScoreAbs_002c-option-208"></a>If this option is set, the score reported by the engine is taken to be
1411 that in favor of white, even when the engine plays black.
1412 Important when XBoard uses the score for adjudications, or in PGN reporting.
1413 <br><dt>-niceEngines priority<dd><a name="index-niceEngines_002c-option-209"></a>This option allows you to lower the priority of the engine processes,
1414 so that the generally insatiable hunger for CPU time of chess engines does not interfere so much
1415 with smooth operation of XBoard (or the rest of your system).
1416 Negative values could increase the engine priority, which is not recommended.
1417 <br><dt>-firstOptions string<dt>-secondOptions string<dd><a name="index-firstOptions_002c-option-210"></a><a name="index-secondOptions_002c-option-211"></a>The given string is a comma-separated list of (option name=option value) pairs,
1418 like the following example: "style=Karpov,blunder rate=0".
1419 If an option announced by the engine at startup through the feature commands of the XBoard/WinBoard protocol
1420 matches one of the option names (i.e. "style" or "blunder rate"),
1421 it would be set to the given value (i.e. "Karpov" or 0)
1422 through a corresponding option command to the engine.
1423 This provided that the type of the value (text or numeric) matches as well.
1424 <br><dt>-firstNeedsNoncompliantFEN string<dt>-secondNeedsNoncompliantFEN string<dd><a name="index-firstNeedsNoncompliantFEN_002c-option-212"></a><a name="index-secondNeedsNoncompliantFEN_002c-option-213"></a>The castling rights and e.p. fields of the FEN sent to the mentioned engine
1425 with the setboard command will be replaced by the given string. This can for
1426 instance be used to run engines that do not understand Chess960 FENs in
1427 variant fischerandom, to make them at least understand the opening position,
1428 through setting the string to "KQkq -". (Note you also have to give the e.p. field!)
1429 Other possible applications are to provide work-arounds for engines that want to see
1430 castling and e.p. fields in variants that do not have castling or e.p.
1431 (shatranj, courier, xiangqi, shogi) so that XBoard would normally omit them
1432 (string = "- -"), or to add variant-specific fields that are not yet supported by XBoard
1433 (e.g. to indicate the number of checks in 3check).
1434 <br><dt>-shuffleOpenings<dd><a name="index-shuffleOpenings_002c-option-214"></a>Forces shuffling of the opening setup in variants that normally have a fixed initial position.
1435 Shufflings are symmetric for black and white, and exempt King and Rooks in variants
1436 with normal castling.
1437 Remains in force until a new variant is selected.
1441 <a name="UCI-+-WB-Engine-Settings"></a>
1442 <a name="UCI-_002b-WB-Engine-Settings"></a>
1444 Next: <a rel="next" accesskey="n" href="#ICS-options">ICS options</a>,
1445 Previous: <a rel="previous" accesskey="p" href="#Chess-engine-options">Chess engine options</a>,
1446 Up: <a rel="up" accesskey="u" href="#Options">Options</a>
1450 <h3 class="section">4.2 UCI + WB Engine Settings</h3>
1452 <p><a name="index-Engine-Settings-215"></a><a name="index-Settings_002c-Engine-216"></a>
1454 <dt>-fUCI or -firstIsUCI true/false<dt>-sUCI or -secondIsUCI true/false<dd><a name="index-fUCI_002c-option-217"></a><a name="index-sUCI_002c-option-218"></a><a name="index-firstIsUCI_002c-option-219"></a><a name="index-secondIsUCI_002c-option-220"></a>Indicates if the mentioned engine executable file is an UCI engine,
1455 and should be run with the aid of the Polyglot adapter rather than directly.
1456 Xboard will then pass the other UCI options and engine name to Polyglot
1457 through a .ini temporary file created for the purpose.
1458 <br><dt>-polyglotDir filename<dd><a name="index-polyglotDir_002c-option-221"></a>Gives the name of the directory in which the Polyglot adapter for UCI engines resides.
1460 <br><dt>-usePolyglotBook true/false<dd><a name="index-usePolyglotBook_002c-option-222"></a>Specifies if the Polyglot book should be used.
1461 <br><dt>-polyglotBook filename<dd><a name="index-polyglotBook_002c-option-223"></a>Gives the filename of the opening book that Polyglot should use.
1462 From XBoard 4.3.15 on, native XBoard/WinBoard engines will also use the opening book specified here,
1463 provided the <code>usePolyglotBook</code> option is set to true,
1464 and the option <code>firstHasOwnBookUCI</code> or <code>secondHasOwnBookUCI</code> applying to the engine
1466 The engine will be kept in force mode as long as the current position is in book,
1467 and XBoard will select the book moves for it. Default: "".
1468 <br><dt>-fNoOwnBookUCI or -firstXBook or -firstHasOwnBookUCI true/false<dt>-sNoOwnBookUCI or -secondXBook or -secondHasOwnBookUCI true/false<dd><a name="index-fNoOwnBookUCI_002c-option-224"></a><a name="index-sNoOwnBookUCI_002c-option-225"></a><a name="index-firstHasOwnBookUCI_002c-option-226"></a><a name="index-secondHasOwnBookUCI_002c-option-227"></a><a name="index-firstXBook_002c-option-228"></a><a name="index-secondXBook_002c-option-229"></a>Indicates if the mentioned engine has its own opening book it should play from,
1469 rather than using the external book through XBoard. Default: false.
1470 <br><dt>-defaultHashSize n<dd><a name="index-defaultHashSize_002c-option-230"></a>Sets the size of the hash table to n MegaBytes. Together with the EGTB cache size
1471 this number is also used to calculate the memory setting of XBoard/WinBoard engines,
1472 for those that support the memory feature of the XBoard/WinBoard protocol. Default: 64.
1473 <br><dt>-defaultCacheSizeEGTB n<dd><a name="index-defaultCacheSizeEGTB_002c-option-231"></a>Sets the size of the EGTB cache to n MegaBytes. Together with the hash-table size
1474 this number is also used to calculate the memory setting of XBoard/WinBoard engines,
1475 for those that support the memory feature of the XBoard/WinBoard protocol. Default: 4.
1476 <br><dt>-defaultPathEGTB filename<dd><a name="index-defaultPathEGTB_002c-option-232"></a>Gives the name of the directory where the end-game tablebases are installed, for UCI engines.
1477 Default: "/usr/local/share/egtb".
1478 <br><dt>-egtFormats string<dd><a name="index-egtFormats_002c-option-233"></a>Specifies which end-game tables are installed on the computer, and where.
1479 The argument is a comma-separated list of format specifications,
1480 each specification consisting of a format name, a colon, and a directory path name,
1481 e.g. "nalimov:/usr/local/share/egtb".
1482 If the name part matches that of a format that the engine requests through a feature command,
1483 xboard will relay the path name for this format to the engine through an egtpath command.
1484 One egtpath command for each matching format will be sent.
1485 Popular formats are "nalimov" DTM tablebases and "scorpio" bitbases.
1490 <a name="ICS-options"></a>
1492 Next: <a rel="next" accesskey="n" href="#Load-and-Save-options">Load and Save options</a>,
1493 Previous: <a rel="previous" accesskey="p" href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a>,
1494 Up: <a rel="up" accesskey="u" href="#Options">Options</a>
1498 <h3 class="section">4.3 ICS options</h3>
1500 <p><a name="index-ICS-options-234"></a><a name="index-Options_002c-ICS-235"></a>
1502 <dt>-ics/-xics or -internetChessServerMode true/false<dd><a name="index-ics_002c-option-236"></a><a name="index-internetChessServerMode_002c-option-237"></a>Connect with an Internet Chess Server to play chess against its
1503 other users, observe games they are playing, or review games
1504 that have recently finished. Default: false.
1505 <br><dt>-icshost or -internetChessServerHost host<dd><a name="index-icshost_002c-option-238"></a><a name="index-internetChessServerHost_002c-option-239"></a>The Internet host name or address of the chess server to connect
1506 to when in ICS mode. Default: <code>chessclub.com</code>.
1507 Another popular chess server to try is <code>freechess.org</code>.
1508 If your site doesn't have a working Internet name server, try
1509 specifying the host address in numeric form.
1511 to specify the numeric address when using the icshelper option
1512 with timestamp or timeseal (see below).
1513 <br><dt>-icsport or -internetChessServerPort port-number<dd><a name="index-icsport_002c-option-240"></a><a name="index-internetChessServerPort_002c-option-241"></a>The port number to use when connecting to a chess server in ICS
1514 mode. Default: 5000.
1515 <br><dt>-icshelper or -internetChessServerHelper prog-name<dd><a name="index-icshelper_002c-option-242"></a><a name="index-internetChessServerHelper_002c-option-243"></a>An external helper program used to communicate with the chess server.
1516 You would set it to "timestamp" for ICC (chessclub.com) or
1517 "timeseal" for FICS (freechess.org), after
1518 obtaining the correct version of timestamp or timeseal for your
1519 computer. See "help timestamp" on ICC and "help timeseal" on FICS.
1520 This option is shorthand for <code>-useTelnet -telnetProgram program</code>.
1521 <br><dt>-telnet/-xtelnet or -useTelnet true/false<dd><a name="index-telnet_002c-option-244"></a><a name="index-useTelnet_002c-option-245"></a>This option is poorly named; it should be called useHelper.
1522 If set to true, it instructs XBoard to run an external
1523 program to communicate with the Internet Chess Server.
1524 The program to use is given by the telnetProgram option.
1526 false (the default), XBoard opens a TCP socket and uses its own
1527 internal implementation of the telnet protocol to communicate with the
1528 ICS. See <a href="#Firewalls">Firewalls</a>.
1529 <br><dt>-telnetProgram prog-name<dd><a name="index-telnetProgram_002c-option-246"></a>This option is poorly named; it should be called helperProgram.
1530 It gives the name of the telnet program to be used with
1531 the <code>gateway</code> and <code>useTelnet</code> options. The default is
1532 <samp><span class="file">telnet</span></samp>. The telnet program is invoked with the value of
1533 <code>internetChessServerHost</code> as its first argument and the value
1534 of <code>internetChessServerPort</code> as its second argument.
1535 See <a href="#Firewalls">Firewalls</a>.
1536 <br><dt>-gateway host-name<dd><a name="index-gateway_002c-option-247"></a>If this option is set to a host name, XBoard communicates with the
1537 Internet Chess Server by using <samp><span class="file">rsh</span></samp> to run
1538 the <code>telnetProgram</code> on the given host,
1539 instead of using its own internal implementation
1540 of the telnet protocol. You can substitute a different remote shell
1541 program for <samp><span class="file">rsh</span></samp> using the <code>remoteShell</code> option described below.
1542 See <a href="#Firewalls">Firewalls</a>.
1543 <br><dt>-internetChessServerCommPort or -icscomm dev-name<dd><a name="index-internetChessServerCommPort_002c-option-248"></a><a name="index-icscomm_002c-option-249"></a>If this option is set, XBoard communicates with the ICS through
1544 the given character I/O device instead of opening a TCP connection.
1545 Use this option if your system does not have any kind of
1546 Internet connection itself (not even a SLIP or PPP connection),
1547 but you do have dial-up access (or a hardwired terminal line) to
1548 an Internet service provider from which you can telnet to the ICS.
1550 <p>The support for this option in XBoard is minimal. You need to
1551 set all communication parameters and tty modes before you enter
1554 <p>Use a script something like this:
1556 <pre class="example"> stty raw -echo 9600 > /dev/tty00
1557 xboard -ics -icscomm /dev/tty00
1559 <p>Here replace ‘<samp><span class="samp">/dev/tty00</span></samp>’ with the name of the device that your
1560 modem is connected to. You might have to add several more
1561 options to these stty commands. See the man pages for <samp><span class="file">stty</span></samp>
1562 and <code>tty</code> if you run into problems. Also, on many systems stty
1563 works on its standard input instead of standard output, so you
1564 have to use ‘<samp><span class="samp"><</span></samp>’ instead of ‘<samp><span class="samp">></span></samp>’.
1566 <p>If you are using linux, try starting with the script below.
1567 Change it as necessary for your installation.
1569 <pre class="example"> #!/bin/sh -f
1570 # configure modem and fire up XBoard
1574 stty 2400 ; stty raw ; stty hupcl ; stty -clocal
1575 stty ignbrk ; stty ignpar ; stty ixon ; stty ixoff
1576 stty -iexten ; stty -echo
1578 xboard -ics -icscomm /dev/modem
1580 <p class="noindent">After you start XBoard in this way, type whatever commands are
1581 necessary to dial out to your Internet provider and log in.
1582 Then telnet to ICS, using a command like
1583 <kbd>telnet chessclub.com 5000</kbd>.
1584 Important: See the paragraph below about extra echoes,
1585 in <a href="#Limitations">Limitations</a>.
1586 <br><dt>-icslogon or -internetChessServerLogonScript file-name<dd><a name="index-icslogon_002c-option-250"></a><a name="index-internetChessServerLogonScript_002c-option-251"></a><a name="index-g_t_002eicsrc-252"></a>Whenever XBoard connects to the Internet Chess Server,
1587 if it finds a file with the name given in this option, it feeds the
1588 file's contents to the ICS as commands. The default file name
1589 is <samp><span class="file">.icsrc</span></samp>.
1590 Usually the first two lines of the file should be
1591 your ICS user name and password.
1592 The file can be either in $CHESSDIR, in XBoard's working
1593 directory if CHESSDIR is not set, or in your home directory.
1594 <br><dt>-msLoginDelay delay<dd><a name="index-msLoginDelay_002c-option-253"></a>If you experience trouble logging on to an ICS when using the
1595 <code>-icslogon</code> option, inserting some delay between characters
1596 of the logon script may help. This option adds <code>delay</code>
1597 milliseconds of delay between characters. Good values to try
1599 <br><dt>-icsinput/-xicsinput or -internetChessServerInputBox true/false<dd><a name="index-icsinput_002c-option-254"></a><a name="index-internetChessServerInputBox_002c-option-255"></a>Sets the ICS Input Box menu option. See <a href="#Mode-Menu">Mode Menu</a>. Default: false.
1600 <br><dt>-autocomm/-xautocomm or -autoComment true/false<dd><a name="index-autocomm_002c-option-256"></a><a name="index-autoComment_002c-option-257"></a>Sets the Auto Comment menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1601 <br><dt>-autoflag/-xautoflag or -autoCallFlag true/false<dd><a name="index-autoflag_002c-option-258"></a><a name="index-autoCallFlag_002c-option-259"></a>Sets the Auto Flag menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1602 <br><dt>-autobs/-xautobs or -autoObserve true/false<dd><a name="index-autobs_002c-option-260"></a><a name="index-autoObserve_002c-option-261"></a>Sets the Auto Observe menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1603 <br><dt>-autoKibitz<dd><a name="index-autoKibitz_002c-option-262"></a>Enables kibitzing of the engines last thinking output (depth, score, time, speed, PV)
1605 to the ICS, in zippy mode. The option <code>showThinking</code> must be switched on for
1606 this option to work.
1607 Also diverts similar kibitz information of an opponent engine that is playing you
1608 through the ICS to the engine-output window, as if the engine was playing locally.
1609 <br><dt>-seekGraph true/false or -sg<dd><a name="index-seekGraph_002c-option-263"></a><a name="index-sg_002c-option-264"></a>Enables displaying of the seek graph by left-clicking the board when
1610 you are logged on to an ICS and currently idle.
1611 The seek graph show all players currently seeking games on the ICS,
1612 plotted according to their rating and the time control of the game they seek,
1613 in three different colors (for rated, unrated and wild games).
1614 Computer ads are displayed as squares, human ads are dots.
1616 <br><dt>-autoRefresh true/false<dd><a name="index-autoRefresh_002c-option-265"></a>Enables automatic updating of the seek graph,
1617 by having the ICS send a running update of all newly placed
1618 and removed seek ads.
1619 This consumes a substantial amount of communication bandwidth,
1620 and is only supported for FICS and ICC.
1622 <br><dt>-backgroundObserve true/false<dd><a name="index-backgroundObserve_002c-option-266"></a>When true, boards sent to you by the ICS from other games while you are playing
1623 (e.g. because you are observing them)
1624 will not be automatically displayed.
1625 Only a summary of time left and material of both players will appear
1626 in the message field above the board.
1627 XBoard will remember the last board it has received this way,
1628 and will display it in stead of the position in your own game
1629 when you press the right mouse button.
1630 No other information is stored on such games observed in the background;
1631 you cannot save such a game later, or step through its moves.
1632 This feature is provided solely for the benefit of bughouse players,
1633 to enable them to peek at their partner's game without the need
1636 <br><dt>-dualBoard true/false<dd><a name="index-dualBoard_002c-option-267"></a>In combination with -backgroundObserve true, this option will display
1637 the board of the background game side by side with that of your own game,
1638 so you can have it in view permanently.
1639 Any board or holdings info coming in will be displayed on the secondary
1641 This feature is still experimental and largely unfinished.
1642 There is no animation or highlighting of moves on the secondary board.
1644 <br><dt>-oneClickMove true/false<dd><a name="index-oneClickMove_002c-option-268"></a>When set, this option allows you to enter moves by only clicking the to-
1645 or from-square, when only a single legal move to or from that square
1647 Double-clicking a piece (or clicking an already selected piece)
1648 will instruct that piece to make the only capture it can legally do.
1650 <br><dt>-moves/-xmoves or -getMoveList true/false<dd><a name="index-moves_002c-option-269"></a><a name="index-getMoveList_002c-option-270"></a>Sets the Get Move List menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1651 <br><dt>-alarm/-xalarm or -icsAlarm true/false<dd><a name="index-alarm_002c-option-271"></a><a name="index-icsAlarm_002c-option-272"></a>Sets the ICS Alarm menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1652 <br><dt>-icsAlarmTime ms<dd><a name="index-icsAlarmTime_002c-option-273"></a>Sets the time in milliseconds for the ICS Alarm menu option.
1653 See <a href="#Options-Menu">Options Menu</a>. Default: 5000.
1654 <br><dt>lowTimeWarning true/false<dd><a name="index-lowTimeWarning_002c-option-274"></a>Controls a color change of the board as a warning your time is running out.
1655 See <a href="#Options-Menu">Options Menu</a>. Default: false.
1656 <br><dt>-pre/-xpre \fRor\fB -premove true/false<dd><a name="index-pre_002c-option-275"></a><a name="index-premove_002c-option-276"></a>Sets the Premove menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1657 <br><dt>-quiet/-xquiet or -quietPlay true/false<dd><a name="index-quiet_002c-option-277"></a><a name="index-quietPlay_002c-option-278"></a>Sets the Quiet Play menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1658 <br><dt>-colorizeMessages or -colorize<dd><a name="index-Colors-279"></a><a name="index-colorize_002c-option-280"></a>Setting colorizeMessages
1659 to true tells XBoard to colorize the messages received from
1660 the ICS. Colorization works only if your xterm
1661 supports ISO 6429 escape sequences for changing text colors.
1662 <br><dt>-colorShout foreground,background,bold<dt>-colorSShout foreground,background,bold<dt>-colorChannel1 foreground,background,bold<dt>-colorChannel foreground,background,bold<dt>-colorKibitz foreground,background,bold<dt>-colorTell foreground,background,bold<dt>-colorChallege foreground,background,bold<dt>-colorRequest foreground,background,bold<dt>-colorSeek foreground,background,bold<dt>-colorNormal foreground,background,bold<dd><a name="index-Colors-281"></a><a name="index-colorShout_002c-option-282"></a><a name="index-colorSShout_002c-option-283"></a><a name="index-colorChannel1_002c-option-284"></a><a name="index-colorChannel_002c-option-285"></a><a name="index-colorKibitz_002c-option-286"></a><a name="index-colorTell_002c-option-287"></a><a name="index-colorChallenge_002c-option-288"></a><a name="index-colorRequest_002c-option-289"></a><a name="index-colorSeek_002c-option-290"></a><a name="index-colorNormal_002c-option-291"></a>These options set the colors used when colorizing ICS messages.
1663 All ICS messages are grouped into one of these categories:
1664 shout, sshout, channel 1, other channel, kibitz, tell, challenge,
1665 request (including abort, adjourn, draw, pause, and takeback), or
1666 normal (all other messages).
1668 <p>Each foreground or background argument can be one of the following:
1669 black, red, green, yellow, blue, magenta, cyan, white, or default.
1670 Here “default” means the default foreground or background color of
1671 your xterm. Bold can be 1 or 0. If background is omitted, “default”
1672 is assumed; if bold is omitted, 0 is assumed.
1674 <p>Here is an example of how to set the colors in your <samp><span class="file">.Xresources</span></samp> file.
1675 The colors shown here are the default values; you will get
1676 them if you turn <code>-colorize</code> on without specifying your own colors.
1678 <pre class="example"> xboard*colorizeMessages: true
1679 xboard*colorShout: green
1680 xboard*colorSShout: green, black, 1
1681 xboard*colorChannel1: cyan
1682 xboard*colorChannel: cyan, black, 1
1683 xboard*colorKibitz: magenta, black, 1
1684 xboard*colorTell: yellow, black, 1
1685 xboard*colorChallenge: red, black, 1
1686 xboard*colorRequest: red
1687 xboard*colorSeek: blue
1688 xboard*colorNormal: default
1690 <br><dt>-soundProgram progname<dd><a name="index-soundProgram_002c-option-292"></a><a name="index-Sounds-293"></a>If this option is set to a sound-playing program that is installed and
1691 working on your system, XBoard can play sound files when certain
1692 events occur, listed below. The default program name is "play". If
1693 any of the sound options is set to "$", the event rings the terminal
1694 bell by sending a ^G character to standard output, instead of playing
1695 a sound file. If an option is set to the empty string "", no sound is
1696 played for that event.
1697 <br><dt>-soundDirectory directoryname<dd><a name="index-soundDirectory_002c-option-294"></a><a name="index-Sounds-295"></a>This option specifies where XBoard will look for sound files,
1698 when these are not given as an absolute path name.
1699 <br><dt>-soundShout filename<dt>-soundSShout filename<dt>-soundChannel filename<dt>-soundKibitz filename<dt>-soundTell filename<dt>-soundChallenge filename<dt>-soundRequest filename<dt>-soundSeek filename<dd><a name="index-soundShout_002c-option-296"></a><a name="index-soundSShout_002c-option-297"></a><a name="index-soundChannel_002c-option-298"></a><a name="index-soundKibitz_002c-option-299"></a><a name="index-soundTell_002c-option-300"></a><a name="index-soundChallenge_002c-option-301"></a><a name="index-soundRequest_002c-option-302"></a><a name="index-soundSeek_002c-option-303"></a>These sounds are triggered in the same way as the colorization events
1700 described above. They all default to "", no sound. They are played
1701 only if the colorizeMessages is on.
1702 <br><dt>-soundMove filename<dd><a name="index-soundMove_002c-option-304"></a>This sound is used by the Move Sound menu option. Default: "$".
1703 <br><dt>-soundIcsAlarm filename<dd><a name="index-soundIcsAlarm_002c-option-305"></a>This sound is used by the ICS Alarm menu option. Default: "$".
1704 <br><dt>-soundIcsWin filename<dd><a name="index-soundIcsWin_002c-option-306"></a>This sound is played when you win an ICS game. Default: "" (no sound).
1705 <br><dt>-soundIcsLoss filename<dd><a name="index-soundIcsLoss_002c-option-307"></a>This sound is played when you lose an ICS game. Default: "" (no sound).
1706 <br><dt>-soundIcsDraw filename<dd><a name="index-soundIcsDraw_002c-option-308"></a>This sound is played when you draw an ICS game. Default: "" (no sound).
1707 <br><dt>-soundIcsUnfinished filename<dd><a name="index-soundIcsUnfinished_002c-option-309"></a>This sound is played when an ICS game that you are participating in is
1708 aborted, adjourned, or otherwise ends inconclusively. Default: "" (no
1711 <p>Here is an example of how to set the sounds in your <samp><span class="file">.Xresources</span></samp> file:
1713 <pre class="example"> xboard*soundShout: shout.wav
1714 xboard*soundSShout: sshout.wav
1715 xboard*soundChannel1: channel1.wav
1716 xboard*soundChannel: channel.wav
1717 xboard*soundKibitz: kibitz.wav
1718 xboard*soundTell: tell.wav
1719 xboard*soundChallenge: challenge.wav
1720 xboard*soundRequest: request.wav
1721 xboard*soundSeek: seek.wav
1722 xboard*soundMove: move.wav
1723 xboard*soundIcsWin: win.wav
1724 xboard*soundIcsLoss: lose.wav
1725 xboard*soundIcsDraw: draw.wav
1726 xboard*soundIcsUnfinished: unfinished.wav
1727 xboard*soundIcsAlarm: alarm.wav
1729 <br><dt>-dropMenu true|false<dd><a name="index-dropMenu_002c-option-310"></a>This option allows you to emulate old behavior,
1730 where the right mouse button brings up the (now deprecated) drop menu
1731 rather than displaying the position at the end of the principal variation.
1733 <br><dt>-variations true|false<dd><a name="index-variations_002c-option-311"></a>When this option is on, you can start new variations in Edit Game or
1734 Analyze mode by holding the Shift key down while entering a move.
1735 When it is off, the Shift key will be ignored.
1740 <a name="Load-and-Save-options"></a>
1742 Next: <a rel="next" accesskey="n" href="#User-interface-options">User interface options</a>,
1743 Previous: <a rel="previous" accesskey="p" href="#ICS-options">ICS options</a>,
1744 Up: <a rel="up" accesskey="u" href="#Options">Options</a>
1748 <h3 class="section">4.4 Load and Save options</h3>
1750 <p><a name="index-Options_002c-Load-and-Save-312"></a><a name="index-Load-and-Save-options-313"></a>
1752 <dt>-lgf or -loadGameFile file<dt>-lgi or -loadGameIndex index<dd><a name="index-lgf_002c-option-314"></a><a name="index-loadGameFile_002c-option-315"></a><a name="index-lgi_002c-option-316"></a><a name="index-loadGameIndex_002c-option-317"></a>If the <code>loadGameFile</code> option is set, XBoard loads the specified
1753 game file at startup. The file name <samp><span class="file">-</span></samp> specifies the standard
1754 input. If there is more than one game in the file, XBoard
1755 pops up a menu of the available games, with entries based on their PGN
1756 (Portable Game Notation) tags.
1757 If the <code>loadGameIndex</code> option is set to ‘<samp><span class="samp">N</span></samp>’, the menu is suppressed
1758 and the N th game found in the file is loaded immediately.
1759 The menu is also suppressed if <code>matchMode</code> is enabled or if the game file
1760 is a pipe; in these cases the first game in the file is loaded immediately.
1761 Use the <samp><span class="file">pxboard</span></samp> shell script provided with XBoard if you
1762 want to pipe in files containing multiple games and still see the menu.
1763 If the loadGameIndex specifies an index -1, this triggers auto-increment
1764 of the index in <code>matchMode</code>, which means that after every game the
1765 index is incremented by one, causing each game of the match to be played
1766 from the next game in the file. Similarly, specifying an index value of -2
1767 causes the index to be incremented every two games, so that each game
1768 in the file is used twice (with reversed colors).
1769 The <code>rewindIndex</code> option causes the index to be reset to the
1770 first game of the file when it has reached a specified value.
1771 <br><dt>-rewindIndex n<dd>Causes a position file or game file to be rewound to its beginning after n
1772 positions or games in auto-increment <code>matchMode</code>.
1773 See <code>loadPositionIndex</code> and <code>loadGameIndex</code>.
1774 default: 0 (no rewind).
1775 <br><dt>-td or -timeDelay seconds<dd><a name="index-td_002c-option-318"></a><a name="index-timeDelay_002c-option-319"></a>Time delay between moves during ‘<samp><span class="samp">Load Game</span></samp>’ or ‘<samp><span class="samp">Analyze File</span></samp>’.
1776 Fractional seconds are allowed; try ‘<samp><span class="samp">-td 0.4</span></samp>’.
1777 A time delay value of -1 tells
1778 XBoard not to step through game files automatically. Default: 1 second.
1779 <br><dt>-sgf or -saveGameFile file<dd><a name="index-sgf_002c-option-320"></a><a name="index-saveGameFile_002c-option-321"></a>If this option is set, XBoard appends a record of every game
1780 played to the specified file. The file name <samp><span class="file">-</span></samp> specifies the
1782 <br><dt>-autosave/-xautosave or -autoSaveGames true/false<dd><a name="index-autosave_002c-option-322"></a><a name="index-autoSaveGames_002c-option-323"></a>Sets the Auto Save menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1783 Ignored if <code>saveGameFile</code> is set.
1784 <br><dt>-lpf or -loadPositionFile file<dt>-lpi or -loadPositionIndex index<dd><a name="index-lpf_002c-option-324"></a><a name="index-loadPositionFile_002c-option-325"></a><a name="index-lpi_002c-option-326"></a><a name="index-loadPositionIndex_002c-option-327"></a>If the <code>loadPositionFile</code> option is set, XBoard loads the
1785 specified position file at startup. The file name <samp><span class="file">-</span></samp> specifies the
1786 standard input. If the <code>loadPositionIndex</code> option is set to N,
1787 the Nth position found in the file is loaded; otherwise the
1788 first position is loaded.
1789 If the loadPositionIndex specifies an index -1, this triggers auto-increment
1790 of the index in <code>matchMode</code>, which means that after every game the
1791 index is incremented by one, causing each game of the match to be played
1792 from the next position in the file. Similarly, specifying an index value of -2
1793 causes the index to be incremented every two games, so that each position
1794 in the file is used twice (with the engines playing opposite colors).
1795 The <code>rewindIndex</code> option causes the index to be reset to the
1796 first position of the file when it has reached a specified value.
1797 <br><dt>-spf or -savePositionFile file<dd><a name="index-spf_002c-option-328"></a><a name="index-savePositionFile_002c-option-329"></a>If this option is set, XBoard appends the final position reached
1798 in every game played to the specified file. The file name <samp><span class="file">-</span></samp>
1799 specifies the standard output.
1800 <br><dt>-pgnExtendedInfo true/false<dd><a name="index-pgnExtendedInfo_002c-option_0060-330"></a>If this option is set, XBoard saves depth, score and time used for each
1801 move that the engine found as a comment in the PGN file.
1803 <br><dt>-pgnEventHeader string<dd><a name="index-pgnEventHeader_002c-option_0060-331"></a>Sets the name used in the PGN event tag to string.
1804 Default: "Computer Chess Game".
1805 <br><dt>-saveOutOfBookInfo true/false<dd><a name="index-saveOutOfBookInfo_002c-option_0060-332"></a>Include the information on how the engine(s) game out of its opening book
1806 in a special 'annotator' tag with the PGN file.
1807 <br><dt>-oldsave/-xoldsave or -oldSaveStyle true/false<dd><a name="index-oldsave_002c-option-333"></a><a name="index-oldSaveStyle_002c-option-334"></a>Sets the Old Save Style menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1808 <br><dt>-gameListTags string<dd><a name="index-gameListTags_002c-option-335"></a>The character string lists the PGN tags that should be printed in the
1809 Game List, and their order. The meaning of the codes is e=event,
1810 s=site, d=date, o=round, p=players, r=result, w=white Elo, b=black Elo,
1811 t=time control, v=variant, a=out-of-book info, c=result comment.
1813 <br><dt>-ini or -settingsFile filename<dt>-saveSettingsFile filename<dt>@filename<dd><a name="index-saveSettingsFile_002c-option-336"></a><a name="index-SettingsFile_002c-option-337"></a><a name="index-init_002c-option-338"></a><a name="index-at-sign_002c-option-339"></a>When XBoard encounters an option -settingsFile (or -ini for short),
1814 or @filename, it tries to read the mentioned file,
1815 and substitutes the contents of it (presumaby more command-line options)
1816 in place of the option.
1817 In the case of -ini or -settingsFile, the name of a successfully read
1818 settings file is also remembered as the file to use for saving settings
1819 (automatically on exit, or on user command).
1820 An option of the form @filename does not affect saving.
1821 The option -saveSettingsFile does specify a name of the file to use
1822 for saving, without reading any options from it, and is thus also effective
1823 when the file did not exist yet.
1824 So the settings will be saved to the file specified in the last
1825 -saveSettingsFile or succesfull -settingsFile / -ini command,
1826 if any, and in /etc/xboard/xboard.conf otherwise.
1827 Usualy the latter is only accessible for the system administrator, though,
1828 and will be used to contain system-wide default setings, amongst which
1829 a -saveSettingsFile and -settingsFile options to specify a settings file
1830 accessible to the individual user, such as ~/.xboardrc in the user's
1835 <a name="User-interface-options"></a>
1837 Next: <a rel="next" accesskey="n" href="#Adjudication-Options">Adjudication Options</a>,
1838 Previous: <a rel="previous" accesskey="p" href="#Load-and-Save-options">Load and Save options</a>,
1839 Up: <a rel="up" accesskey="u" href="#Options">Options</a>
1843 <h3 class="section">4.5 User interface options</h3>
1845 <p><a name="index-User-interface-options-340"></a><a name="index-Options_002c-User-interface-341"></a>
1847 <dt>-display<dt>-geometry<dt>-iconic<dd><a name="index-display_002c-option-342"></a><a name="index-geometry_002c-option-343"></a><a name="index-iconic_002c-option-344"></a>These and most other standard Xt options are accepted.
1848 <br><dt>-noGUI<dd><a name="index-noGUI_002c-option-345"></a>Suppresses all GUI functions of XBoard
1849 (to speed up automated ultra-fast engine-engine games, which you donÂ’t want to watch).
1850 There will be no board or clock updates, no printing of moves,
1851 and no update of the icon on the task bar in this mode.
1852 <br><dt>-movesound/-xmovesound or -ringBellAfterMoves true/false<dd><a name="index-movesound_002c-option-346"></a><a name="index-bell_002c-option-347"></a><a name="index-ringBellAfterMoves_002c-option-348"></a>Sets the Move Sound menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1853 For compatibility with old XBoard versions, -bell/-xbell are also
1854 accepted as abbreviations for this option.
1855 <br><dt>-exit/-xexit or -popupExitMessage true/false<dd><a name="index-exit_002c-option-349"></a><a name="index-popupExitMessage_002c-option-350"></a>Sets the Popup Exit Message menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1856 <br><dt>-popup/-xpopup or -popupMoveErrors true/false<dd><a name="index-popup_002c-option-351"></a><a name="index-popupMoveErrors_002c-option-352"></a>Sets the Popup Move Errors menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1857 <br><dt>-queen/-xqueen or -alwaysPromoteToQueen true/false<dd><a name="index-queen_002c-option-353"></a><a name="index-alwaysPromoteToQueen_002c-option-354"></a>Sets the Always Queen menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1858 <br><dt>-legal/-xlegal or -testLegality true/false<dd><a name="index-legal_002c-option-355"></a><a name="index-testLegality_002c-option-356"></a>Sets the Test Legality menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1859 <br><dt>-size or -boardSize (sizeName | n1,n2,n3,n4,n5,n6,n7)<dd><a name="index-size_002c-option-357"></a><a name="index-boardSize_002c-option-358"></a><a name="index-board-size-359"></a>Determines how large the board will be, by selecting the pixel size
1860 of the pieces and setting a few related parameters.
1861 The sizeName can be one of: Titanic, giving 129x129 pixel pieces,
1862 Colossal 116x116, Giant 108x108, Huge 95x95, Big 87x87, Large 80x80, Bulky 72x72,
1863 Medium 64x64, Moderate 58x58, Average 54x54, Middling 49x49, Mediocre
1864 45x45, Small 40x40, Slim 37x37, Petite 33x33, Dinky 29x29, Teeny 25x25,
1866 Orthodox pieces of all these sizes are built into XBoard.
1868 be used if you have them; see the pixmapDirectory and bitmapDirectory
1870 Complete sets of un-orthodox pieces are only provided in sizes
1871 Bulky, Middling and (to a lesser extent) Petite;
1872 Archbishop, Marshall and Amazon are also available in all sizes between
1874 When no bitmap is available, the piece will be displayed as Amazon or King.
1875 The default depends on the size of your screen; it is approximately the
1876 largest size that will fit without clipping.
1878 <p>You can select other sizes or vary other layout parameters by providing
1879 a list of comma-separated values (with no spaces) as the argument.
1880 You do not need to provide all the values; for any you omit from the
1881 end of the list, defaults are taken from the nearest built-in size.
1882 The value <code>n1</code> gives the piece size, <code>n2</code> the width of the
1884 between squares, <code>n3</code> the desired size for the
1885 clockFont, <code>n4</code> the desired size for the coordFont,
1886 <code>n5</code> the desired size for the default font,
1887 <code>n6</code> the smallLayout flag (0 or 1),
1888 and <code>n7</code> the tinyLayout flag (0 or 1).
1889 All dimensions are in pixels.
1890 If the border between squares is eliminated (0 width), the various
1891 highlight options will not work, as there is nowhere to draw the highlight.
1892 If smallLayout is 1 and <code>titleInWindow</code> is true,
1893 the window layout is rearranged to make more room for the title.
1894 If tinyLayout is 1, the labels on the menu bar are abbreviated
1895 to one character each and the buttons in the button bar are made narrower.
1896 <br><dt>-coords/-xcoords or -showCoords true/false<dd><a name="index-coords_002c-option-360"></a><a name="index-showCoords_002c-option-361"></a>Sets the Show Coords menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1897 The <code>coordFont</code> option specifies what font to use.
1898 <br><dt>-autoraise/-xautoraise or -autoRaiseBoard true/false<dd><a name="index-autoraise_002c-option-362"></a><a name="index-autoRaiseBoard_002c-option-363"></a>Sets the Auto Raise Board menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1899 <br><dt>-autoflip/-xautoflip or -autoFlipView true/false<dd><a name="index-autoflip_002c-option-364"></a><a name="index-autoFlipView_002c-option-365"></a>Sets the Auto Flip View menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
1900 <br><dt>-flip/-xflip or -flipView true/false<dd><a name="index-flip_002c-option-366"></a><a name="index-flipView_002c-option-367"></a>If Auto Flip View is not set, or if you are observing but not participating
1901 in a game, then the positioning of the board at the start of each game
1902 depends on the flipView option. If flipView is false (the default),
1903 the board is positioned so that the white pawns move from the bottom to the
1904 top; if true, the black pawns move from the bottom to the top.
1905 In any case, the Flip menu option (see <a href="#Options-Menu">Options Menu</a>)
1906 can be used to flip the board after
1908 <br><dt>-title/-xtitle or -titleInWindow true/false<dd><a name="index-title_002c-option-368"></a><a name="index-titleInWindow_002c-option-369"></a>If this option is true, XBoard displays player names (for ICS
1909 games) and game file names (for ‘<samp><span class="samp">Load Game</span></samp>’) inside its main
1910 window. If the option is false (the default), this information is
1911 displayed only in the window banner. You probably won't want to
1912 set this option unless the information is not showing up in the
1913 banner, as happens with a few X window managers.
1914 <br><dt>-buttons/-xbuttons or -showButtonBar True/False<dd><a name="index-buttons_002c-option-370"></a><a name="index-showButtonBar_002c-option-371"></a>If this option is False, xboard omits the [<<] [<] [P] [>] [>>] button
1915 bar from the window, allowing the message line to be wider. You can
1916 still get the functions of these buttons using the menus or their keyboard
1917 shortcuts. Default: true.
1918 <br><dt>-mono/-xmono or -monoMode true/false<dd><a name="index-mono_002c-option-372"></a><a name="index-monoMode_002c-option-373"></a>Determines whether XBoard displays its pieces and squares with
1919 two colors (true) or four (false). You shouldn't have to
1920 specify <code>monoMode</code>; XBoard will determine if it is necessary.
1921 <br><dt>-showTargetSquares true/false<dd><a name="index-showTargetSquares_002c-option-374"></a>Determines whether XBoard can highlight the squares a piece has
1922 legal moves to, when you grab that piece with the mouse.
1923 If this option is set, this feature can be controlled through
1924 the Highlight Dragging menu item.
1925 <br><dt>-flashCount count<dt>-flashRate rate<dt>-flash/-xflash<dd><a name="index-flashCount_002c-option-375"></a><a name="index-flashRate_002c-option-376"></a><a name="index-flash_002c-option-377"></a><a name="index-xflash_002c-option-378"></a>These options enable flashing of pieces when they
1926 land on their destination square.
1927 <code>flashCount</code>
1928 tells XBoard how many times to flash a piece after it
1929 lands on its destination square.
1930 <code>flashRate</code>
1931 controls the rate of flashing (flashes/sec).
1934 sets flashCount to 3.
1936 sets flashCount to 0.
1937 Defaults: flashCount=0 (no flashing), flashRate=5.
1938 <br><dt>-highlight/-xhighlight or -highlightLastMove true/false<dd><a name="index-highlight_002c-option-379"></a><a name="index-highlightLastMove_002c-option-380"></a>Sets the Highlight Last Move menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1939 <br><dt>-highlightMoveWithArrow true/false<dd><a name="index-highlight-Arrow_002c-option-381"></a><a name="index-highlightMoveWithArrow_002c-option-382"></a>Sets the Highlight with Arrow menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1940 <br><dt>-blind/-xblind or -blindfold true/false<dd><a name="index-blind_002c-option-383"></a><a name="index-blindfold_002c-option-384"></a>Sets the Blindfold menu option. See <a href="#Options-Menu">Options Menu</a>. Default: false.
1941 <br><dt>-clockFont font<dd><a name="index-clockFont_002c-option-385"></a><a name="index-Font_002c-clock-386"></a>The font used for the clocks. If the option value is a pattern
1942 that does not specify the font size, XBoard tries to choose an
1943 appropriate font for the board size being used.
1944 Default: -*-helvetica-bold-r-normal–*-*-*-*-*-*-*-*.
1945 <br><dt>-coordFont font<dd><a name="index-coordFont_002c-option-387"></a><a name="index-Font_002c-coordinates-388"></a>The font used for rank and file coordinate labels if <code>showCoords</code>
1946 is true. If the option value is a pattern that does not specify
1947 the font size, XBoard tries to choose an appropriate font for
1948 the board size being used.
1949 Default: -*-helvetica-bold-r-normal–*-*-*-*-*-*-*-*.
1950 <br><dt>-font font<dd><a name="index-font_002c-option-389"></a><a name="index-Font-390"></a>The font used for popup dialogs, menus, comments, etc.
1951 If the option value is a pattern that does not specify
1952 the font size, XBoard tries to choose an appropriate font for
1953 the board size being used.
1954 Default: -*-helvetica-medium-r-normal–*-*-*-*-*-*-*-*.
1955 <br><dt>-fontSizeTolerance tol<dd><a name="index-fontSizeTolerance_002c-option-391"></a>In the font selection algorithm, a nonscalable font will be preferred
1956 over a scalable font if the nonscalable font's size differs
1957 by <code>tol</code> pixels
1958 or less from the desired size. A value of -1 will force
1959 a scalable font to always be used if available; a value of 0 will
1960 use a nonscalable font only if it is exactly the right size;
1961 a large value (say 1000) will force a nonscalable font to always be
1962 used if available. Default: 4.
1963 <br><dt>-bm or -bitmapDirectory dir<dt>-pixmap or -pixmapDirectory dir<dd><a name="index-bm_002c-option-392"></a><a name="index-bitmapDirectory_002c-option-393"></a><a name="index-pixmap_002c-option-394"></a><a name="index-pixmapDirectory_002c-option-395"></a>These options control what piece images xboard uses. The XBoard
1964 distribution includes one set of pixmap pieces in xpm format, in the
1965 directory <samp><span class="file">pixmaps</span></samp>, and one set of bitmap pieces in xbm format,
1966 in the directory <samp><span class="file">bitmaps</span></samp>. Pixmap
1967 pieces give a better appearance on the screen: the white pieces have
1968 dark borders, and the black pieces have opaque internal details. With
1969 bitmaps, neither piece color has a border, and the internal details
1970 are transparent; you see the square color or other background color
1973 <p>If XBoard is configured and compiled on a system that includes libXpm,
1974 the X pixmap library, the xpm pixmap pieces are compiled in as the
1975 default. A different xpm piece set can be selected at runtime with
1976 the <code>pixmapDirectory</code> option, or a bitmap piece set can be selected
1977 with the <code>bitmapDirectory</code> option.
1979 <p>If XBoard is configured and compiled on a system that does not include
1980 libXpm (or the <code>--disable-xpm</code> option is given to the configure
1981 program), the bitmap pieces are compiled in as the default. It is not
1982 possible to use xpm pieces in this case, but pixmap pieces in another
1983 format called "xim" can be used by giving the <code>pixmapDirectory</code> option.
1984 Or again, a different bitmap piece set can be selected with the
1985 <code>bitmapDirectory</code> option.
1987 <p>Files in the <code>bitmapDirectory</code> must be named as follows:
1988 The first character of a piece bitmap name gives the piece it
1989 represents (‘<samp><span class="samp">p</span></samp>’, ‘<samp><span class="samp">n</span></samp>’, ‘<samp><span class="samp">b</span></samp>’, ‘<samp><span class="samp">r</span></samp>’, ‘<samp><span class="samp">q</span></samp>’, or ‘<samp><span class="samp">k</span></samp>’),
1990 the next characters give the size in pixels, the
1991 following character indicates whether the piece is
1992 solid or outline (‘<samp><span class="samp">s</span></samp>’ or ‘<samp><span class="samp">o</span></samp>’),
1993 and the extension is ‘<samp><span class="samp">.bm</span></samp>’.
1994 For example, a solid 80x80 knight would be named <samp><span class="file">n80s.bm</span></samp>.
1995 The outline bitmaps are used only in monochrome mode.
1996 If bitmap pieces are compiled in and the bitmapDirectory is missing
1997 some files, the compiled in pieces are used instead.
1999 <p>If the bitmapDirectory option is given,
2000 it is also possible to replace xboard's icons and menu checkmark,
2001 by supplying files named <samp><span class="file">icon_white.bm</span></samp>, <samp><span class="file">icon_black.bm</span></samp>, and
2002 <samp><span class="file">checkmark.bm</span></samp>.
2004 <p>For more information about pixmap pieces and how to get additional
2005 sets, see <a href="#zic2xpm">zic2xpm</a> below.
2006 <br><dt>-whitePieceColor color<dt>-blackPieceColor color<dt>-lightSquareColor color<dt>-darkSquareColor color<dt>-highlightSquareColor color<dt>-lowTimeWarningColor color<dd><a name="index-Colors-396"></a><a name="index-whitePieceColor_002c-option-397"></a><a name="index-blackPieceColor_002c-option-398"></a><a name="index-lightSquareColor_002c-option-399"></a><a name="index-darkSquareColor_002c-option-400"></a><a name="index-highlightSquareColor_002c-option-401"></a><a name="index-lowTimeWarningColor_002c-option-402"></a>Colors to use for the pieces, squares, and square highlights.
2009 <pre class="example"> -whitePieceColor #FFFFCC
2010 -blackPieceColor #202020
2011 -lightSquareColor #C8C365
2012 -darkSquareColor #77A26D
2013 -highlightSquareColor #FFFF00
2014 -premoveHighlightColor #FF0000
2015 -lowTimeWarningColor #FF0000
2017 <p>On a grayscale monitor you might prefer:
2019 <pre class="example"> -whitePieceColor gray100
2020 -blackPieceColor gray0
2021 -lightSquareColor gray80
2022 -darkSquareColor gray60
2023 -highlightSquareColor gray100
2024 -premoveHighlightColor gray70
2025 -lowTimeWarningColor gray70
2027 <br><dt>-drag/-xdrag or -animateDragging true/false<dd><a name="index-drag_002c-option-403"></a><a name="index-animateDragging_002c-option-404"></a>Sets the Animate Dragging menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
2028 <br><dt>-animate/-xanimate or -animateMoving true/false<dd><a name="index-animate_002c-option-405"></a><a name="index-animateMoving_002c-option-406"></a>Sets the Animate Moving menu option. See <a href="#Options-Menu">Options Menu</a>. Default: true.
2029 <br><dt>-animateSpeed n<dd><a name="index-g_t_002danimateSpeed_002c-option-407"></a>Number of milliseconds delay between each animation frame when Animate
2031 <br><dt>-autoDisplayComment true/false<dt>-autoDisplayTags true/false<dd><a name="index-g_t_002dautoDisplayComment_002c-option-408"></a><a name="index-g_t_002dautoDisplayTags_002c-option-409"></a>If set to true, these options cause the window with the move comments,
2032 and the window with PGN tags, respectively, to pop up automatically when
2033 such tags or comments are encountered during the replaying a stored or
2034 loaded game. Default: true.
2035 <br><dt>-pasteSelection true/false<dd><a name="index-g_t_002dpasteSelection_002c-option-410"></a>If this option is set to true, the Paste Position and Paste Game
2036 options paste from the currently selected text. If false, they paste
2037 from the clipboard. Default: false.
2041 <a name="Adjudication-Options"></a>
2043 Next: <a rel="next" accesskey="n" href="#Other-options">Other options</a>,
2044 Previous: <a rel="previous" accesskey="p" href="#User-interface-options">User interface options</a>,
2045 Up: <a rel="up" accesskey="u" href="#Options">Options</a>
2049 <h3 class="section">4.6 Adjudication Options</h3>
2051 <p><a name="index-Options_002c-adjudication-411"></a>
2053 <dt>-adjudicateLossThreshold n<dd><a name="index-adjudicateLossThreshold_002c-option-412"></a>If the given value is non-zero, XBoard adjudicates the game as a loss
2054 if both engines agree for a duration of 6 consecutive ply that the score
2055 is below the given score threshold for that engine. Make sure the score
2056 is interpreted properly by XBoard,
2057 using <code>-firstScoreAbs</code> and <code>-secondScoreAbs</code> if needed.
2058 Default: 0 (no adjudication)
2059 <br><dt>-adjudicateDrawMoves n<dd><a name="index-adjudicateDrawMoves_002c-option-413"></a>If the given value is non-zero, XBoard adjudicates the game as a draw
2060 if after the given number of moves it was not yet decided. Default: 0 (no adjudication)
2061 <br><dt>-checkMates true/false<dd><a name="index-checkMates_002c-option-414"></a>If this option is set, XBoard detects all checkmates and stalemates,
2062 and ends the game as soon as they occur.
2063 Legality-testing must be switched on for this option to work.
2065 <br><dt>-testClaims true/false<dd><a name="index-testClaims_002c-option-415"></a>If this option is set, XBoard verifies all result claims made by engines,
2066 and those who send false claims will forfeit the game because of it.
2067 Legality-testing must be switched on for this option to work. Default: true
2068 <br><dt>-materialDraws true/false<dd><a name="index-materialDraws_002c-option-416"></a>If this option is set, XBoard adjudicates games as draws when there is
2069 no sufficient material left to inflict a checkmate.
2070 This applies to KBKB with like bishops (any number, actually), and to KBK, KNK and KK.
2071 Legality-testing must be switched on for this option to work. Default: true
2072 <br><dt>-trivialDraws true/false<dd><a name="index-trivialDraws_002c-option-417"></a>If this option is set, XBoard adjudicates games as draws that cannot be
2073 usually won without opponent cooperation. This applies to KBKB with unlike bishops,
2074 and to KBKN, KNKN, KNNK, KRKR and KQKQ. The draw is called after 6 ply into these end-games,
2075 to allow quick mates that can occur in some exceptional positions to be found by the engines.
2076 KQKQ does not really belong in this category, and might be taken out in the future.
2077 (When bitbase-based adjudications are implemented.)
2078 Legality-testing must be on for this option to work. Default: false
2079 <br><dt>-ruleMoves n<dd><a name="index-ruleMoves_002c-option-418"></a>If the given value is non-zero, XBoard adjudicates the game as a draw after the given
2080 number of consecutive reversible moves. Engine draw claims are always accepted after 50 moves,
2081 irrespective of the given value of n.
2082 <br><dt>-repeatsToDraw n<dd>If the given value is non-zero, xboard adjudicates the game as a draw if a position
2083 is repeated the given number of times. Engines draw claims are always accepted after 3 repeats,
2084 (on the 3rd occurrence, actually), irrespective of the value of n.
2085 Beware that positions that have different castling or en-passant rights do not count
2086 as repeats, XBoard is fully e.p. and castling aware!
2090 <a name="Other-options"></a>
2092 Previous: <a rel="previous" accesskey="p" href="#Adjudication-Options">Adjudication Options</a>,
2093 Up: <a rel="up" accesskey="u" href="#Options">Options</a>
2097 <h3 class="section">4.7 Other options</h3>
2099 <p><a name="index-Options_002c-miscellaneous-419"></a>
2101 <dt>-ncp/-xncp or -noChessProgram true/false<dd><a name="index-ncp_002c-option-420"></a><a name="index-noChessProgram_002c-option-421"></a>If this option is true, XBoard acts as a passive chessboard; it
2102 does not start a chess engine at all. Turning on this option
2103 also turns off clockMode. Default: false.
2104 <br><dt>-mode or -initialMode modename<dd><a name="index-mode_002c-option-422"></a><a name="index-initalMode_002c-option-423"></a>If this option is given, XBoard selects the given modename
2105 from the Mode menu after starting and (if applicable) processing the
2106 loadGameFile or loadPositionFile option. Default: "" (no selection).
2107 Other supported values are
2108 MachineWhite, MachineBlack, TwoMachines, Analysis,
2109 AnalyzeFile, EditGame, EditPosition, and Training.
2110 <br><dt>-variant varname<dd><a name="index-variant_002c-option-424"></a>Activates preliminary, partial support for playing chess variants
2111 against a local engine or editing variant games. This flag is not
2112 needed in ICS mode. Recognized variant names are:
2114 <pre class="example"> normal Normal chess
2115 wildcastle Shuffle chess, king can castle from d file
2116 nocastle Shuffle chess, no castling allowed
2117 fischerandom Fischer Random shuffle chess
2118 bughouse Bughouse, ICC/FICS rules
2119 crazyhouse Crazyhouse, ICC/FICS rules
2120 losers Lose all pieces or get mated (ICC wild 17)
2121 suicide Lose all pieces including king (FICS)
2122 giveaway Try to have no legal moves (ICC wild 26)
2123 twokings Weird ICC wild 9
2124 kriegspiel Opponent's pieces are invisible
2125 atomic Capturing piece explodes (ICC wild 27)
2126 3check Win by giving check 3 times (ICC wild 25)
2127 shatranj An ancient precursor of chess (ICC wild 28)
2128 xiangqi Chinese Chess (on a 9x10 board)
2129 shogi Japanese Chess (on a 9x9 board & piece drops)
2130 capablanca Capablanca Chess (10x8 board, with Archbishop
2131 and Chancellor pieces)
2132 gothic similar, with a better initial position
2133 caparandom An FRC-like version of Capablanca Chess (10x8)
2134 janus A game with two Archbishops (10x8 board)
2135 courier Medieval intermediate between shatranj and
2136 modern Chess (on 12x8 board)
2137 falcon Patented 10x8 variant with two Falcon pieces
2138 berolina Pawns capture straight ahead, and move diagonal
2139 cylinder Pieces wrap around the board edge
2140 knightmate King moves as Knight, and vice versa
2141 super Superchess (shuffle variant with 4 exo-pieces)
2142 makruk Thai Chess (shatranj-like, P promotes on 6th rank)
2143 spartan Spartan Chess (black has unorthodox pieces)
2144 fairy A catchall variant in which all piece types
2145 known to XBoard can participate (8x8)
2146 unknown Catchall for other unknown variants
2148 <p>NOT ALL BOARDSIZES PROVIDE A COMPLETE SET OF BUILT-IN BITMAPS FOR ALL
2149 UN-ORTHODOX PIECES, though. Only in <code>boardSize</code> middling and bulky
2150 all 22 piece types are provided, while -boardSize petite has most
2151 of them. Archbishop, Chancellor and Amazon are supported in every
2152 size from petite to bulky. Kings or Amazons are substituted for
2153 missing bitmaps. You can still play variants needing un-orthodox
2154 pieces in other board sizes providing your own bitmaps through the
2155 <code>bitmapDirectory</code> or <code>pixmapDirectory</code> options.
2157 <p>In the shuffle variants, XBoard now does shuffle the pieces, although
2158 you can still do it by hand using Edit Position. Some variants are
2159 supported only in ICS mode, including bughouse, and
2160 kriegspiel. The winning/drawing conditions in crazyhouse (off-board
2161 interposition on mate) are not fully understood, but losers, suicide,
2162 giveaway, atomic, and 3check should be OK.
2163 Berolina and cylinder chess can only be played with legality testing off.
2164 In crazyhouse, XBoard now does keep
2165 track of off-board pieces. In shatranj it does implement the baring
2166 rule when mate detection is switched on.
2167 <br><dt>-boardHeight N<dd><a name="index-boardHeight_002c-option-425"></a>Allows you to set a non-standard number of board ranks in any variant.
2168 If the height is given as -1, the default height for the variant is used.
2170 <br><dt>-boardWidth N<dd><a name="index-boardWidth_002c-option-426"></a>Allows you to set a non-standard number of board files in any variant.
2171 If the width is given as -1, the default width for the variant is used.
2172 With a non-standard width, the initial position will always be an empty board,
2173 as the usual opening array will not fit.
2175 <br><dt>-holdingsSize N<dd><a name="index-holdingsSize_002c-option-427"></a>Allows you to set a non-standard size for the holdings in any variant.
2176 If the size is given as -1, the default holdings size for the variant is used.
2177 The first N piece types will go into the holdings on capture, and you will be
2178 able to drop them on the board in stead of making a normal move. If size equals 0,
2179 there will be no holdings.
2181 <br><dt>-defaultFrcPosition N<dd><a name="index-defaultFrcPosition_002c-option-428"></a>Specifies the number of the opening position in shuffle games like Chess960.
2182 A value of -1 means the position is randomly generated by XBoard
2183 at the beginning of every game.
2185 <br><dt>-pieceToSquareTable string<dd><a name="index-pieceToSquareTable_002c-option-429"></a>The characters that are used to represent the piece types XBoard knows in FEN
2186 diagrams and SAN moves. The string argument has to have an even length
2187 (or it will be ignored), as white and black pieces have to be given separately
2188 (in that order). The last letter for each color will be the King.
2189 The letters before that will be PNBRQ and then a whole host of fairy pieces
2190 in an order that has not fully crystallized yet (currently FEACWMOHIJGDVSLU,
2191 F=Ferz, Elephant, A=Archbishop, C=Chancellor, W=Wazir, M=Commoner, O=Cannon,
2192 H=Nightrider). You should list at least all pieces that occur in the variant
2193 you are playing. If you have less than 44 characters in the string, the pieces
2194 not mentioned will get assigned a period, and you will not be able to distinguish
2195 them in FENs. You can also explicitly assign pieces a period, in which case they
2196 will not be counted in deciding which captured pieces can go into the holdings.
2197 A tilde '~' as a piece name does mean this piece is used to represent a promoted
2198 Pawn in crazyhouse-like games, i.e. on capture it turns back onto a Pawn.
2199 A '+' similarly indicates the piece is a shogi-style promoted piece, that should
2200 revert to its non-promoted version on capture (rather than to a Pawn).
2201 Note that promoted pieces are represented by pieces 11 further in the list.
2202 You should not have to use this option often: each variant has its own default
2203 setting for the piece representation in FEN, which should be sufficient in normal use.
2205 <br><dt>-debug/-xdebug or -debugMode true/false<dd><a name="index-debug_002c-option-430"></a><a name="index-debugMode_002c-option-431"></a>Turns on debugging printout.
2206 <br><dt>-debugFile filename or -nameOfDebugFile filename<dd><a name="index-debugFile_002c-option-432"></a><a name="index-nameOfDebugFile_002c-option-433"></a>Sets the name of the file to which XBoard saves debug information
2207 (including all communication to and from the engines).
2208 <br><dt>-engineDebugOutput number<dd><a name="index-engineDebugOutput_002c-option-434"></a>Specifies how XBoard should handle unsolicited output from the engine,
2209 with respect to saving it in the debug file.
2210 The output is further (hopefully) ignored.
2211 If number=0, XBoard refrains from writing such spurious output to the debug file.
2212 If number=1, all engine output is written faithfully to the debug file.
2213 If number=2, any protocol-violating line is prefixed with a '#' character,
2214 as the engine itself should have done if it wanted to submit info for inclusion in the debug file.
2215 This option is provided for the benefit of applications that use the debug file
2216 as a source of information, such as the broadcaster of live games TLCV / TLCS.
2217 Such applications can be protected from spurious engine output that might otherwise confuse them.
2218 <br><dt>-rsh or -remoteShell shell-name<dd><a name="index-rsh_002c-option-435"></a><a name="index-remoteShell_002c-option-436"></a>Name of the command used to run programs remotely. The default
2219 is <samp><span class="file">rsh</span></samp> or <samp><span class="file">remsh</span></samp>, determined when XBoard is
2220 configured and compiled.
2221 <br><dt>-ruser or -remoteUser user-name<dd><a name="index-ruser_002c-option-437"></a><a name="index-remoteUser_002c-option-438"></a>User name on the remote system when running programs with the
2222 <code>remoteShell</code>. The default is your local user name.
2223 <br><dt>-userName username<dd><a name="index-userName_002c-option-439"></a>Name under which the Human player will be listed in the PGN file.
2224 Default is the login name on your local computer.
2225 <br><dt>-delayBeforeQuit number<dt>-delayAfterQuit number<dd><a name="index-delayBeforeQuit_002c-option-440"></a><a name="index-delayAfterQuit_002c-option-441"></a>These options specify how long XBoard has to wait before sending a termination signal to rogue engine processes, that do not want to react to the 'quit' command. The second one determines the pause after killing the engine, to make sure it dies.
2230 <a name="Chess-Servers"></a>
2232 Next: <a rel="next" accesskey="n" href="#Firewalls">Firewalls</a>,
2233 Previous: <a rel="previous" accesskey="p" href="#Options">Options</a>,
2234 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2238 <h2 class="chapter">5 Chess Servers</h2>
2240 <p><a name="index-ICS-442"></a><a name="index-ICS_002c-addresses-443"></a><a name="index-Internet-Chess-Server-444"></a>An <dfn>Internet Chess Server</dfn>, or <dfn>ICS</dfn>, is a place on the
2241 Internet where people can get together to play chess, watch other
2242 people's games, or just chat. You can use either <code>telnet</code> or a
2243 client program like XBoard to connect to the server. There are
2244 thousands of registered users on the different ICS hosts, and it is
2245 not unusual to meet 200 on both chessclub.com and freechess.org.
2247 <p>Most people can just type <kbd>xboard -ics</kbd> to start XBoard as an ICS
2248 client. Invoking XBoard in this way connects you to the Internet
2249 Chess Club (ICC), a commercial ICS. You can log in there as a guest
2250 even if you do not have a paid account. To connect to the largest
2251 Free ICS (FICS), use the command <kbd>xboard -ics -icshost freechess.org</kbd>
2252 instead, or substitute a different host name to connect to your
2254 For a full description of command-line options that control
2255 the connection to ICS and change the default values of ICS options, see
2256 <a href="#ICS-options">ICS options</a>.
2258 <p>While you are running XBoard as an ICS client,
2259 you use the terminal window that you started XBoard from
2260 as a place to type in commands and read information that is
2261 not available on the chessboard.
2263 <p>The first time you need to use the terminal is to enter your login name
2264 and password, if you are a registered player. (You don't need to do
2265 this manually; the <code>icsLogon</code> option can do it for you.
2266 see <a href="#ICS-options">ICS options</a>.) If you are not registered,
2267 enter <kbd>g</kbd> as your name, and the server will pick a
2268 unique guest name for you.
2270 <p>Some useful ICS commands
2273 <dt><kbd>help <topic></kbd><dd><a name="index-help_002c-ICS-command-445"></a>to get help on the given <topic>. To get a list of possible topics type
2274 <dfn>help</dfn> without topic. Try the help command before you ask other
2275 people on the server for help.
2277 <p>For example <kbd>help register</kbd> tells you how to become a registered
2279 <br><dt><kbd>who <flags></kbd><dd><a name="index-who_002c-ICS-command-446"></a>to see a list of people who are logged on. Administrators
2280 (people you should talk to if you have a problem) are marked
2281 with the character ‘<samp><span class="samp">*</span></samp>’, an asterisk. The <flags> allow you to
2282 display only selected players: For example, <kbd>who of</kbd> shows a
2283 list of players who are interested in playing but do not have
2285 <br><dt><kbd>games</kbd><dd><a name="index-games_002c-ICS-command-447"></a>to see what games are being played
2286 <br><dt><kbd>match <player> [<mins>] [<inc>]</kbd><dd>to challenge another player to a game. Both opponents get <mins> minutes
2287 for the game, and <inc> seconds will be added after each move.
2288 If another player challenges you, the server asks if you want to
2289 accept the challenge; use the <kbd>accept</kbd> or <kbd>decline</kbd> commands
2291 <br><dt><kbd>accept</kbd><dt><kbd>decline</kbd><dd><a name="index-accept_002c-ICS-command-448"></a><a name="index-decline_002c-ICS-command-449"></a>to accept or decline another player's offer.
2292 The offer may be to start a new game, or to agree to a
2293 <kbd>draw</kbd>, <kbd>adjourn</kbd> or <kbd>abort</kbd> the current game. See <a href="#Action-Menu">Action Menu</a>.
2295 <p>If you have more than one pending offer (for example, if more than one player
2296 is challenging you, or if your opponent offers both a draw and to adjourn the
2297 game), you have to supply additional information, by typing something
2298 like <kbd>accept <player></kbd>, <kbd>accept draw</kbd>, or <kbd>draw</kbd>.
2299 <br><dt><kbd>draw</kbd><dt><kbd>adjourn</kbd><dt><kbd>abort</kbd><dd><a name="index-draw_002c-ICS-command-450"></a><a name="index-adjourn_002c-ICS-command-451"></a><a name="index-abort_002c-ICS-command-452"></a>asks your opponent to terminate a game by mutual agreement. Adjourned
2300 games can be continued later.
2301 Your opponent can either <kbd>decline</kbd> your offer or accept it (by typing the
2302 same command or typing <kbd>accept</kbd>). In some cases these commands work
2303 immediately, without asking your opponent to agree. For example, you can
2304 abort the game unilaterally if your opponent is out of time, and you can claim
2305 a draw by repetition or the 50-move rule if available simply by typing
2307 <br><dt><kbd>finger <player></kbd><dd><a name="index-finger_002c-ICS-command-453"></a>to get information about the given <player>. (Default: yourself.)
2308 <br><dt><kbd>vars</kbd><dd><a name="index-vars_002c-ICS-command-454"></a>to get a list of personal settings
2309 <br><dt><kbd>set <var> <value></kbd><dd><a name="index-set_002c-ICS-command-455"></a>to modify these settings
2310 <br><dt><kbd>observe <player></kbd><dd><a name="index-observe_002c-ICS-command-456"></a>to observe an ongoing game of the given <player>.
2311 <br><dt><kbd>examine</kbd><dt><kbd>oldmoves</kbd><dd><a name="index-examine_002c-ICS-command-457"></a><a name="index-oldmoves_002c-ICS-command-458"></a>to review a recently completed game
2314 <p>Some special XBoard features are activated when you are
2315 in examine mode on ICS. See the descriptions of the menu commands
2316 ‘<samp><span class="samp">Forward</span></samp>’, ‘<samp><span class="samp">Backward</span></samp>’, ‘<samp><span class="samp">Pause</span></samp>’, ‘<samp><span class="samp">ICS Client</span></samp>’,
2317 and ‘<samp><span class="samp">Stop Examining</span></samp>’ on the <a href="#Edit-Menu">Edit Menu</a>, <a href="#Mode-Menu">Mode Menu</a>, and
2318 <a href="#Action-Menu">Action Menu</a>.
2321 <a name="Firewalls"></a>
2323 Next: <a rel="next" accesskey="n" href="#Environment">Environment</a>,
2324 Previous: <a rel="previous" accesskey="p" href="#Chess-Servers">Chess Servers</a>,
2325 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2329 <h2 class="chapter">6 Firewalls</h2>
2331 <p>By default, XBoard communicates with an Internet Chess Server
2332 by opening a TCP socket directly from the machine it is running on
2333 to the ICS. If there is a firewall between your machine and the ICS,
2334 this won't work. Here are some recipes for getting around common
2335 kinds of firewalls using special options to XBoard.
2336 Important: See the paragraph in the below about extra echoes, in
2337 <a href="#Limitations">Limitations</a>.
2339 <p>Suppose that you can't telnet directly to ICS, but you can telnet
2340 to a firewall host, log in, and then telnet from there to ICS.
2341 Let's say the firewall is called ‘<samp><span class="samp">firewall.example.com</span></samp>’. Set
2342 command-line options as follows:
2344 <pre class="example"> xboard -ics -icshost firewall.example.com -icsport 23
2346 <p class="noindent">Or in your <samp><span class="file">.Xresources</span></samp> file:
2348 <pre class="example"> XBoard*internetChessServerHost: firewall.example.com
2349 XBoard*internetChessServerPort: 23
2351 <p class="noindent">Then when you run XBoard in ICS mode, you will be prompted
2352 to log in to the firewall host. This works because port 23 is the
2353 standard telnet login service. Do so, then telnet to ICS, using a
2354 command like ‘<samp><span class="samp">telnet chessclub.com 5000</span></samp>’, or whatever command
2355 the firewall provides for telnetting to port 5000.
2357 <p>If your firewall lets you telnet (or rlogin) to remote hosts but
2358 doesn't let you telnet to port 5000, you may be able to connect to the
2359 chess server on port 23 instead, which is the port the telnet program
2360 uses by default. Some chess servers support this (including
2361 chessclub.com and freechess.org), while some do not.
2363 <p>If your chess server does not allow connections on port 23 and your
2364 firewall does not allow you to connect to other ports, you may be able
2365 to connect by hopping through another host outside the firewall that
2366 you have an account on. For instance, suppose you have a shell
2367 account at ‘<samp><span class="samp">foo.edu</span></samp>’. Follow the recipe above, but instead of
2368 typing ‘<samp><span class="samp">telnet chessclub.com 5000</span></samp>’ to the firewall, type
2369 ‘<samp><span class="samp">telnet foo.edu</span></samp>’ (or ‘<samp><span class="samp">rlogin foo.edu</span></samp>’), log in there, and
2370 then type ‘<samp><span class="samp">telnet chessclub.com 5000</span></samp>’.
2372 <p>Suppose that you can't telnet directly to ICS, but you can use rsh
2373 to run programs on a firewall host, and that host can telnet to ICS.
2374 Let's say the firewall is called ‘<samp><span class="samp">rsh.example.com</span></samp>’. Set
2375 command-line options as follows:
2377 <pre class="example"> xboard -ics -gateway rsh.example.com -icshost chessclub.com
2379 <p class="noindent">Or in your <samp><span class="file">.Xresources</span></samp> file:
2381 <pre class="example"> XBoard*gateway: rsh.example.com
2382 XBoard*internetChessServerHost: chessclub.com
2384 <p>Then when you run XBoard in ICS mode, it will connect to
2385 the ICS by using <samp><span class="file">rsh</span></samp> to run the command
2386 ‘<samp><span class="samp">telnet chessclub.com 5000</span></samp>’ on host ‘<samp><span class="samp">rsh.example.com</span></samp>’.
2388 <p>Suppose that you can telnet anywhere you want, but you have to
2389 run a special program called <samp><span class="file">ptelnet</span></samp> to do so.
2391 <p>First, we'll consider the easy case, in which
2392 ‘<samp><span class="samp">ptelnet chessclub.com 5000</span></samp>’ gets you to the chess server.
2393 In this case set command line options as follows:
2395 <pre class="example"> xboard -ics -telnet -telnetProgram ptelnet
2397 <p class="noindent">Or in your <samp><span class="file">.Xresources</span></samp> file:
2399 <pre class="example"> XBoard*useTelnet: true
2400 XBoard*telnetProgram: ptelnet
2402 <p class="noindent">Then when you run XBoard in ICS mode, it will issue the
2403 command ‘<samp><span class="samp">ptelnet chessclub.com 5000</span></samp>’ to connect to the ICS.
2405 <p>Next, suppose that ‘<samp><span class="samp">ptelnet chessclub.com 5000</span></samp>’ doesn't work;
2406 that is, your <samp><span class="file">ptelnet</span></samp> program doesn't let you connect to
2407 alternative ports. As noted above, your chess server may allow you to
2408 connect on port 23 instead. In that case, just add the option
2409 ‘<samp><span class="samp">-icsport ""</span></samp>’ to the above command, or add
2410 ‘<samp><span class="samp">XBoard*internetChessServerPort:</span></samp>’ to your <samp><span class="file">.Xresources</span></samp> file.
2411 But if your chess server doesn't let you connect on port 23, you will have
2412 to find some other host outside the firewall and hop through it. For
2413 instance, suppose you have a shell account at ‘<samp><span class="samp">foo.edu</span></samp>’. Set
2414 command line options as follows:
2416 <pre class="example"> xboard -ics -telnet -telnetProgram ptelnet -icshost foo.edu -icsport ""
2418 <p class="noindent">Or in your <samp><span class="file">.Xresources</span></samp> file:
2420 <pre class="example"> XBoard*useTelnet: true
2421 XBoard*telnetProgram: ptelnet
2422 XBoard*internetChessServerHost: foo.edu
2423 XBoard*internetChessServerPort:
2425 <p class="noindent">Then when you run XBoard in ICS mode, it will issue the
2426 command ‘<samp><span class="samp">ptelnet foo.edu</span></samp>’ to connect to your account at
2427 ‘<samp><span class="samp">foo.edu</span></samp>’. Log in there, then type ‘<samp><span class="samp">telnet chessclub.com 5000</span></samp>’.
2429 <p>ICC timestamp and FICS timeseal do not work through some
2430 firewalls. You can use them only if your firewall gives a clean TCP
2431 connection with a full 8-bit wide path. If your firewall allows you
2432 to get out only by running a special telnet program, you can't use
2433 timestamp or timeseal across it. But if you have access to a
2434 computer just outside your firewall, and you have much lower netlag
2435 when talking to that computer than to the ICS, it might be worthwhile
2436 running timestamp there. Follow the instructions above for hopping
2437 through a host outside the firewall (foo.edu in the example),
2438 but run timestamp or timeseal on that host instead of telnet.
2440 <p>Suppose that you have a SOCKS firewall that will give you a clean
2441 8-bit wide TCP connection to the chess server, but only after you
2442 authenticate yourself via the SOCKS protocol. In that case, you could
2443 make a socksified version of XBoard and run that. If you are using
2444 timestamp or timeseal, you will to socksify it, not XBoard; this may
2445 be difficult seeing that ICC and FICS do not provide source code for
2446 these programs. Socksification is beyond the scope of this document,
2447 but see the SOCKS Web site at http://www.socks.permeo.com/.
2448 If you are missing SOCKS, try http://www.funbureau.com/.
2451 <a name="Environment"></a>
2453 Next: <a rel="next" accesskey="n" href="#Limitations">Limitations</a>,
2454 Previous: <a rel="previous" accesskey="p" href="#Firewalls">Firewalls</a>,
2455 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2459 <h2 class="chapter">7 Environment variables</h2>
2461 <p><a name="index-Environment-variables-459"></a><a name="index-CHESSDIR-460"></a>Game and position files are found in a directory named by the
2462 <code>CHESSDIR</code> environment variable. If this variable is not set, the
2463 current working directory is used. If <code>CHESSDIR</code> is set,
2464 XBoard actually changes its working directory to
2465 <code>$CHESSDIR</code>, so any files written by the chess engine
2466 will be placed there too.
2469 <a name="Limitations"></a>
2471 Next: <a rel="next" accesskey="n" href="#Problems">Problems</a>,
2472 Previous: <a rel="previous" accesskey="p" href="#Environment">Environment</a>,
2473 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2477 <h2 class="chapter">8 Limitations and known bugs</h2>
2479 <p><a name="index-Limitations-461"></a><a name="index-Bugs-462"></a>There is no way for two people running copies of XBoard to play
2480 each other without going through an Internet Chess Server.
2482 <p>Under some circumstances, your ICS password may be echoed when you log on.
2484 <p>If you are connecting to the ICS by running telnet on an Internet
2485 provider or firewall host, you may find that each line you type is
2486 echoed back an extra time after you hit <Enter>. If your Internet
2487 provider is a Unix system, you can probably turn its echo off by
2488 typing <kbd>stty -echo</kbd> after you log in, and/or typing
2489 <^E><Enter> (Ctrl+E followed by the Enter key) to the telnet
2490 program after you have logged into ICS. It is a good idea to do this
2491 if you can, because the extra echo can occasionally confuse XBoard's
2494 <p>The game parser recognizes only algebraic notation.
2496 <p>Many of the following points used to be limitations in XBoard 4.2.7 and earlier,
2498 The internal move legality tester in XBoard 4.3.xx does look at the game history,
2499 and is fully aware of castling or en-passant-capture rights. It permits castling with
2500 the king on the d file because this is possible in some "wild 1" games on ICS.
2501 The piece-drop menu does not check piece drops in bughouse to see if you actually hold
2502 the piece you are trying to drop. But this way of dropping pieces should be considered
2503 an obsolete feature, now that pieces can be dropped by dragging them from the holdings
2504 to the board. Anyway, if you would attempt an illegal move when using a chess engine or the ICS,
2505 XBoard will accept the error message that comes back, undo the move, and let you try another.
2506 FEN positions saved by XBoard do include correct information about whether castling or
2507 en passant are legal, and also handle the 50-move counter.
2508 The mate detector does not understand that non-contact mate is not really mate in bughouse.
2509 The only problem this causes while playing is minor: a "#" (mate indicator) character will
2510 show up after a non-contact mating move in the move list. XBoard will not assume the game
2511 is over at that point, not even when the option Detect Mates is on.
2512 Edit Game mode always uses the rules of the selected variant,
2513 which can be a variant that uses piece drops.
2514 You can load and edit games that contain piece drops.
2515 The (obsolete) piece menus are not active,
2516 but you can perform piece drops by dragging pieces from the holdings.
2517 Fischer Random castling is fully understood.
2518 You can enter castlings by dragging the King on top of your Rook.
2519 You can probably also play Fischer Random successfully on ICS by typing
2520 castling moves into the ICS Interaction window.
2522 <p>The menus may not work if your keyboard is in Caps Lock or Num Lock mode.
2523 This seems to be a problem with the Athena menu widget,
2526 <p>Also see the ToDo file included with the distribution for many other
2527 possible bugs, limitations, and ideas for improvement that have been
2530 <a name="Problems"></a>
2532 Next: <a rel="next" accesskey="n" href="#Contributors">Contributors</a>,
2533 Previous: <a rel="previous" accesskey="p" href="#Limitations">Limitations</a>,
2534 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2538 <h2 class="chapter">9 Reporting problems</h2>
2540 <p><a name="index-Bugs-463"></a><a name="index-Bug-reports-464"></a><a name="index-Reporting-bugs-465"></a><a name="index-Problems-466"></a><a name="index-Reporting-problems-467"></a>
2541 You can report bugs and problems with XBoard using
2542 the bug tracker at <code>https://savannah.gnu.org/projects/xboard/</code>
2543 or by sending mail to <code><bug-xboard@gnu.org></code>. It can also
2544 be useful to report or discuss bugs in the WinBoard Forum at
2545 <code>http://www.open-aurec.com/wbforum/</code>,
2546 WinBoard development section.
2548 <p>Please use the <samp><span class="file">script</span></samp> program to start a typescript, run
2549 XBoard with the ‘<samp><span class="samp">-debug</span></samp>’ option, and include the typescript
2550 output in your message.
2551 Also tell us what kind of machine and what operating system version
2552 you are using. The command ‘<samp><span class="samp">uname -a</span></samp>’ will often tell you this.
2554 <p>If you improve XBoard, please send a message about your changes,
2555 and we will get in touch with you about merging them in
2556 to the main line of development.
2559 <a name="Contributors"></a>
2561 Next: <a rel="next" accesskey="n" href="#CMail">CMail</a>,
2562 Previous: <a rel="previous" accesskey="p" href="#Problems">Problems</a>,
2563 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2567 <h2 class="chapter">10 Authors and contributors</h2>
2569 <p><a name="index-Authors-468"></a><a name="index-Contributors-469"></a>
2570 Chris Sears and Dan Sears wrote the original XBoard. They were
2571 responsible for versions 1.0 through 1.2. The color scheme was taken
2572 from Wayne Christopher's <code>XChess</code> program.
2574 <p>Tim Mann was primarily responsible for XBoard versions 1.3 through
2575 4.2.7, and for WinBoard (a port of XBoard to Microsoft Win32) from its
2576 inception through version 4.2.7.
2578 <p>John Chanak contributed the initial implementation of ICS mode. Evan
2579 Welsh wrote <code>CMail</code>, and Patrick Surry helped in designing,
2580 testing, and documenting it. Elmar Bartel contributed the new piece
2581 bitmaps introduced in version 3.2. Jochen Wiedmann converted the
2582 documentation to texinfo. Frank McIngvale added click/click moving,
2583 the Analysis modes, piece flashing, ZIICS import, and ICS text
2584 colorization to XBoard. Hugh Fisher added animated piece movement to
2585 XBoard, and Henrik Gram added it to WinBoard. Mark Williams
2586 contributed the initial (WinBoard-only) implementation of many new
2587 features added to both XBoard and WinBoard in version 4.1.0, including
2588 copy/paste, premove, icsAlarm, autoFlipView, training mode, auto
2589 raise, and blindfold. Ben Nye contributed X copy/paste code for
2592 <p>In a fork from version 4.2.7, Alessandro Scotti added many elements to
2593 the user interface of WinBoard, including the board textures and
2594 font-based rendering, the evaluation-graph, move-history and
2595 engine-output window. He was also responsible for adding the UCI
2598 <p>H. G. Muller continued this fork of the project, producing version
2599 4.3. He made WinBoard castling- and e.p.-aware, added variant support
2600 with adjustable board sizes, the crazyhouse holdings, and the fairy
2601 pieces. In addition he added most of the adjudication options, made
2602 WinBoard more robust in dealing with buggy and crashing engines, and
2603 extended time control with a time-odds and node-count-based modes.
2604 Most of the options that initially were WinBoard only have now been
2605 back-ported to XBoard.
2607 <p>Michel van den Bergh provided the code for reading Polyglot opening books.
2609 <p>Meanwhile, some work continued on the GNU XBoard project maintained at
2610 savannah.gnu.org, but version 4.2.8 was never released. Daniel
2611 Mehrmann was responsible for much of this work.
2613 <p>Most recently, Arun Persaud worked with H. G. Muller to merge all
2614 the features of the never-released XBoard/WinBoard 4.2.8 of the GNU
2615 XBoard project and the never-released 4.3.16 from H. G.'s fork into a
2616 unified XBoard/WinBoard 4.4, which is now available both from the
2617 savannah.gnu.org web site and the WinBoard forum.
2620 <a name="CMail"></a>
2622 Next: <a rel="next" accesskey="n" href="#Other-programs">Other programs</a>,
2623 Previous: <a rel="previous" accesskey="p" href="#Contributors">Contributors</a>,
2624 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2628 <h2 class="chapter">11 CMail</h2>
2630 <p><a name="index-cmail-470"></a>The <samp><span class="file">cmail</span></samp> program can help you play chess by email with opponents of
2631 your choice using XBoard as an interface.
2633 <p>You will usually run <samp><span class="file">cmail</span></samp> without giving any options.
2636 <li><a accesskey="1" href="#CMail-options">CMail options</a>: Invoking CMail.
2637 <li><a accesskey="2" href="#CMail-game">CMail game</a>: Starting a CMail game.
2638 <li><a accesskey="3" href="#CMail-answer">CMail answer</a>: Answering a move.
2639 <li><a accesskey="4" href="#CMail-multi">CMail multi</a>: Multiple games in one message.
2640 <li><a accesskey="5" href="#CMail-completion">CMail completion</a>: Completing a game.
2641 <li><a accesskey="6" href="#CMail-trouble">CMail trouble</a>: Known CMail problems.
2645 <a name="CMail-options"></a>
2647 Next: <a rel="next" accesskey="n" href="#CMail-game">CMail game</a>,
2648 Up: <a rel="up" accesskey="u" href="#CMail">CMail</a>
2652 <h3 class="section">11.1 CMail options</h3>
2655 <dt>-h<dd>Displays <samp><span class="file">cmail</span></samp> usage information.
2656 <br><dt>-c<dd>Shows the conditions of the GNU General Public License.
2657 See <a href="#Copying">Copying</a>.
2658 <br><dt>-w<dd>Shows the warranty notice of the GNU General Public License.
2659 See <a href="#Copying">Copying</a>.
2660 <br><dt>-v<dt>-xv<dd>Provides or inhibits verbose output from <samp><span class="file">cmail</span></samp> and XBoard,
2661 useful for debugging. The
2663 form also inhibits the cmail introduction message.
2664 <br><dt>-mail<dt>-xmail<dd>Invokes or inhibits the sending of a mail message containing the move.
2665 <br><dt>-xboard<dt>-xxboard<dd>Invokes or inhibits the running of XBoard on the game file.
2666 <br><dt>-reuse<dt>-xreuse<dd>Invokes or inhibits the reuse of an existing XBoard to display the
2668 <br><dt>-remail<dd>Resends the last mail message for that game. This inhibits running
2670 <br><dt>-game <name><dd>The name of the game to be processed.
2671 <br><dt>-wgames <number><dt>-bgames <number><dt>-games <number><dd>Number of games to start as White, as Black or in total. Default is 1 as
2672 white and none as black. If only one color is specified then none of the
2673 other color is assumed. If no color is specified then equal numbers of
2674 White and Black games are started, with the extra game being as White if an
2675 odd number of total games is specified.
2676 <br><dt>-me <short name><dt>-opp <short name><dd>A one-word alias for yourself or your opponent.
2677 <br><dt>-wname <full name><dt>-bname <full name><dt>-name <full name><dt>-oppname <full name><dd>The full name of White, Black, yourself or your opponent.
2678 <br><dt>-wna <net address><dt>-bna <net address><dt>-na <net address><dt>-oppna <net address><dd>The email address of White, Black, yourself or your opponent.
2679 <br><dt>-dir <directory><dd>The directory in which <samp><span class="file">cmail</span></samp> keeps its files. This defaults to the
2680 environment variable <code>$CMAIL_DIR</code> or failing that, <code>$CHESSDIR</code>,
2681 <samp><span class="file">$HOME/Chess</span></samp> or <samp><span class="file">~/Chess</span></samp>. It will be created if it does not exist.
2682 <br><dt>-arcdir <directory><dd>The directory in which <samp><span class="file">cmail</span></samp> archives completed games. Defaults to
2683 the environment variable <code>$CMAIL_ARCDIR</code> or, in its absence, the same
2684 directory as cmail keeps its working files (above).
2685 <br><dt>-mailprog <mail program><dd>The program used by cmail to send email messages. This defaults to the
2686 environment variable <code>$CMAIL_MAILPROG</code> or failing that
2687 <samp><span class="file">/usr/ucb/Mail</span></samp>, <samp><span class="file">/usr/ucb/mail</span></samp> or <samp><span class="file">Mail</span></samp>. You will need
2688 to set this variable if none of the above paths fit your system.
2689 <br><dt>-logFile <file><dd>A file in which to dump verbose debugging messages that are invoked with
2690 the ‘<samp><span class="samp">-v</span></samp>’
2692 <br><dt>-event <event><dd>The PGN Event tag (default ‘<samp><span class="samp">Email correspondence game</span></samp>’).
2693 <br><dt>-site <site><dd>The PGN Site tag (default ‘<samp><span class="samp">NET</span></samp>’).
2694 <br><dt>-round <round><dd>The PGN Round tag (default ‘<samp><span class="samp">-</span></samp>’, not applicable).
2695 <br><dt>-mode <mode><dd>The PGN Mode tag (default ‘<samp><span class="samp">EM</span></samp>’, Electronic Mail).
2696 <br><dt>Other options<dd>Any option flags not listed above are passed through to XBoard.
2697 Invoking XBoard through CMail changes the default values of two XBoard
2698 options: The default value for ‘<samp><span class="samp">-noChessProgram</span></samp>’ is changed to
2699 true; that is, by default no chess engine is started. The default
2700 value for ‘<samp><span class="samp">-timeDelay</span></samp>’ is changed to 0; that is, by default
2701 XBoard immediately goes to the end of the game as played so far,
2702 rather than stepping through the moves one by one. You can still set
2703 these options to whatever values you prefer by supplying them on
2704 CMail's command line. See <a href="#Options">Options</a>.
2708 <a name="CMail-game"></a>
2710 Next: <a rel="next" accesskey="n" href="#CMail-answer">CMail answer</a>,
2711 Previous: <a rel="previous" accesskey="p" href="#CMail-options">CMail options</a>,
2712 Up: <a rel="up" accesskey="u" href="#CMail">CMail</a>
2716 <h3 class="section">11.2 Starting a CMail Game</h3>
2718 <p>Type <samp><span class="file">cmail</span></samp> from a shell to start a game as white. After an opening
2719 message, you will be prompted for a game name, which is optional—if you
2720 simply press <Enter>, the game name will take the form
2721 ‘<samp><span class="samp">you-VS-opponent</span></samp>’. You will next be prompted for the short name
2722 of your opponent. If you haven't played this person before, you will also
2723 be prompted for his/her email address. <samp><span class="file">cmail</span></samp> will then invoke
2724 XBoard in the background. Make your first move and select
2725 ‘<samp><span class="samp">Mail Move</span></samp>’ from the ‘<samp><span class="samp">File</span></samp>’ menu. See <a href="#File-Menu">File Menu</a>. If all is well,
2726 <samp><span class="file">cmail</span></samp> will mail a copy of the move to your opponent. If you select
2727 ‘<samp><span class="samp">Exit</span></samp>’ without having selected ‘<samp><span class="samp">Mail Move</span></samp>’ then no move will be
2731 <a name="CMail-answer"></a>
2733 Next: <a rel="next" accesskey="n" href="#CMail-multi">CMail multi</a>,
2734 Previous: <a rel="previous" accesskey="p" href="#CMail-game">CMail game</a>,
2735 Up: <a rel="up" accesskey="u" href="#CMail">CMail</a>
2739 <h3 class="section">11.3 Answering a Move</h3>
2741 <p>When you receive a message from an opponent containing a move in one of
2742 your games, simply pipe the message through <samp><span class="file">cmail</span></samp>. In some mailers
2743 this is as simple as typing <kbd>| cmail</kbd> when viewing the message, while in
2744 others you may have to save the message to a file and do <kbd>cmail < file</kbd>
2745 at the command line. In either case <samp><span class="file">cmail</span></samp> will display the game using
2746 XBoard. If you didn't exit XBoard when you made your first move
2747 then <samp><span class="file">cmail</span></samp> will do its best to use the existing XBoard instead
2748 of starting a new one. As before, simply make a move and select
2749 ‘<samp><span class="samp">Mail Move</span></samp>’ from the ‘<samp><span class="samp">File</span></samp>’ menu. See <a href="#File-Menu">File Menu</a>. <samp><span class="file">cmail</span></samp>
2751 XBoard that was most recently used to display the current game. This
2752 means that many games can be in progress simultaneously, each with its own
2755 <p>If you want to look at the history or explore a variation, go ahead, but
2756 you must return to the current position before XBoard will allow you
2757 to mail a move. If you edit the game's history you must select
2758 ‘<samp><span class="samp">Reload Same Game</span></samp>’ from the ‘<samp><span class="samp">File</span></samp>’ menu to get back to the original
2759 position, then make the move you want and select ‘<samp><span class="samp">Mail Move</span></samp>’.
2760 As before, if you decide you aren't ready to make a move just yet you can
2761 either select ‘<samp><span class="samp">Exit</span></samp>’ without sending a move or just leave
2762 XBoard running until you are ready.
2765 <a name="CMail-multi"></a>
2767 Next: <a rel="next" accesskey="n" href="#CMail-completion">CMail completion</a>,
2768 Previous: <a rel="previous" accesskey="p" href="#CMail-answer">CMail answer</a>,
2769 Up: <a rel="up" accesskey="u" href="#CMail">CMail</a>
2773 <h3 class="section">11.4 Multi-Game Messages</h3>
2775 <p>It is possible to have a <samp><span class="file">cmail</span></samp> message carry more than one game.
2776 This feature was implemented to handle IECG (International Email Chess
2777 Group) matches, where a match consists of one game as white and one as black,
2778 with moves transmitted simultaneously. In case there are more general uses,
2779 <samp><span class="file">cmail</span></samp> itself places no limit on the number of black/white games
2780 contained in a message; however, XBoard does.
2783 <a name="CMail-completion"></a>
2785 Next: <a rel="next" accesskey="n" href="#CMail-trouble">CMail trouble</a>,
2786 Previous: <a rel="previous" accesskey="p" href="#CMail-multi">CMail multi</a>,
2787 Up: <a rel="up" accesskey="u" href="#CMail">CMail</a>
2791 <h3 class="section">11.5 Completing a Game</h3>
2793 <p>Because XBoard can detect checkmate and stalemate, <samp><span class="file">cmail</span></samp>
2794 handles game termination sensibly. As well as resignation, the
2795 ‘<samp><span class="samp">Action</span></samp>’ menu allows draws to be offered and accepted for
2796 <samp><span class="file">cmail</span></samp> games.
2798 <p>For multi-game messages, only unfinished and just-finished games will be
2799 included in email messages. When all the games are finished, they are
2800 archived in the user's archive directory, and similarly in the opponent's
2801 when he or she pipes the final message through <samp><span class="file">cmail</span></samp>. The archive
2802 file name includes the date the game was started.
2805 <a name="CMail-trouble"></a>
2807 Previous: <a rel="previous" accesskey="p" href="#CMail-completion">CMail completion</a>,
2808 Up: <a rel="up" accesskey="u" href="#CMail">CMail</a>
2812 <h3 class="section">11.6 Known CMail Problems</h3>
2814 <p>It's possible that a strange conjunction of conditions may occasionally
2815 mean that <samp><span class="file">cmail</span></samp> has trouble reactivating an existing
2816 XBoard. If this should happen, simply trying it again should work.
2817 If not, remove the file that stores the XBoard's PID
2818 (<samp><span class="file">game.pid</span></samp>) or use the ‘<samp><span class="samp">-xreuse</span></samp>’ option to force
2819 <samp><span class="file">cmail</span></samp> to start a new XBoard.
2821 <p>Versions of <samp><span class="file">cmail</span></samp> after 2.16 no longer understand the old file format
2822 that XBoard used to use and so cannot be used to correspond with
2823 anyone using an older version.
2825 <p>Versions of <samp><span class="file">cmail</span></samp> older than 2.11 do not handle multi-game messages,
2826 so multi-game correspondence is not possible with opponents using an older
2830 <a name="Other-programs"></a>
2832 Next: <a rel="next" accesskey="n" href="#Copyright">Copyright</a>,
2833 Previous: <a rel="previous" accesskey="p" href="#CMail">CMail</a>,
2834 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2838 <h2 class="chapter">12 Other programs you can use with XBoard</h2>
2840 <p><a name="index-Other-programs-471"></a>
2841 Here are some other programs you can use with XBoard
2844 <li><a accesskey="1" href="#GNU-Chess">GNU Chess</a>: The GNU Chess engine.
2845 <li><a accesskey="2" href="#Fairy_002dMax">Fairy-Max</a>: The Fairy-Max chess engine.
2846 <li><a accesskey="3" href="#HoiChess">HoiChess</a>: The HoiChess chess engine.
2847 <li><a accesskey="4" href="#Crafty">Crafty</a>: The Crafty chess engine.
2848 <li><a accesskey="5" href="#zic2xpm">zic2xpm</a>: The program used to import chess sets from ZIICS.
2852 <a name="GNU-Chess"></a>
2854 Next: <a rel="next" accesskey="n" href="#Fairy_002dMax">Fairy-Max</a>,
2855 Up: <a rel="up" accesskey="u" href="#Other-programs">Other programs</a>
2859 <h3 class="section">12.1 GNU Chess</h3>
2861 <p>The GNU Chess engine is available from:
2863 <p>ftp://ftp.gnu.org/gnu/gnuchess/
2865 <p>You can use XBoard to play a game against GNU Chess, or to
2866 interface GNU Chess to an ICS.
2869 <a name="Fairy-Max"></a>
2870 <a name="Fairy_002dMax"></a>
2872 Next: <a rel="next" accesskey="n" href="#HoiChess">HoiChess</a>,
2873 Previous: <a rel="previous" accesskey="p" href="#GNU-Chess">GNU Chess</a>,
2874 Up: <a rel="up" accesskey="u" href="#Other-programs">Other programs</a>
2878 <h3 class="section">12.2 Fairy-Max</h3>
2880 <p>Fairy-Max is a derivative from the once World's smallest Chess program micro-Max,
2881 which measures only about 100 lines of source code.
2882 The main difference with micro-Max is that Fairy-Max loads its move-generator
2883 tables from a file, so that the rules for piece movement can be easily configured
2884 to implement unorthodox pieces.
2885 Fairy-Max can therefore play a large number of variants, normal Chess being one of those.
2886 In addition it plays Knightmate, Capablanca and Gothic Chess, Shatranj, Courier Chess,
2887 Cylinder chess, Berolina Chess, while the user can easily define new variants.
2888 It can be obtained from:
2890 <p>http://home.hccnet.nl/h.g.muller/dwnldpage.html
2893 <a name="HoiChess"></a>
2895 Next: <a rel="next" accesskey="n" href="#Crafty">Crafty</a>,
2896 Previous: <a rel="previous" accesskey="p" href="#Fairy_002dMax">Fairy-Max</a>,
2897 Up: <a rel="up" accesskey="u" href="#Other-programs">Other programs</a>
2901 <h3 class="section">12.3 HoiChess</h3>
2903 <p>HoiChess is a not-so-very-strong Chess engine, which comes with a derivative HoiXiangqi,
2904 able to play Chinese Chess. It can be obtained from the standard Linux repositories
2907 <p>sudo apt-get install hoichess
2910 <a name="Crafty"></a>
2912 Next: <a rel="next" accesskey="n" href="#zic2xpm">zic2xpm</a>,
2913 Previous: <a rel="previous" accesskey="p" href="#HoiChess">HoiChess</a>,
2914 Up: <a rel="up" accesskey="u" href="#Other-programs">Other programs</a>
2918 <h3 class="section">12.4 Crafty</h3>
2920 <p>Crafty is a chess engine written by Bob Hyatt.
2921 You can use XBoard to play a game against Crafty, hook Crafty up
2922 to an ICS, or use Crafty to interactively analyze games and positions
2925 <p>Crafty is a strong, rapidly evolving chess program. This rapid
2926 pace of development is good, because it means Crafty is always
2927 getting better. This can sometimes cause problems with
2928 backwards compatibility, but usually the latest version of Crafty
2929 will work well with the latest version of XBoard.
2930 Crafty can be obtained from its author's FTP site:
2931 ftp://ftp.cis.uab.edu/hyatt/.
2933 <p>To use Crafty with XBoard, give the -fcp and -fd options as follows, where
2934 <crafty's directory> is the directory in which you installed Crafty
2935 and placed its book and other support files.
2938 <a name="zic2xpm"></a>
2940 Previous: <a rel="previous" accesskey="p" href="#Crafty">Crafty</a>,
2941 Up: <a rel="up" accesskey="u" href="#Other-programs">Other programs</a>
2945 <h3 class="section">12.5 zic2xpm</h3>
2947 <p>The “zic2xpm” program is used to import chess sets from the ZIICS(*)
2948 program into XBoard. “zic2xpm” is part of the XBoard distribution.
2949 ZIICS is available from:
2951 <p>ftp://ftp.freechess.org/pub/chess/DOS/ziics131.exe
2953 <p>To import ZIICS pieces, do this:
2955 <dt>1. Unzip ziics131.exe into a directory:<dd>
2956 <pre class="example"> unzip -L ziics131.exe -d ~/ziics
2958 <br><dt>2. Use zic2xpm to convert a set of pieces to XBoard format.<dd>
2959 For example, let's say you want to use the
2960 FRITZ4 set. These files are named “fritz4.*” in the ZIICS distribution.
2962 <pre class="example"> mkdir ~/fritz4
2964 zic2xpm ~/ziics/fritz4.*
2966 <br><dt>3. Give XBoard the “-pixmap” option when starting up, e.g.:<dd>
2967 <pre class="example"> xboard -pixmap ~/fritz4
2969 <p>Alternatively, you can add this line to your <samp><span class="file">.Xresources</span></samp> file:
2971 <pre class="example"> xboard*pixmapDirectory: ~/fritz4
2975 <p>(*) ZIICS is a separate copyrighted work of Andy McFarland.
2976 The “ZIICS pieces” are copyrighted works of their respective
2977 creators. Files produced by “zic2xpm” are for PERSONAL USE ONLY
2978 and may NOT be redistributed without explicit permission from
2979 the original creator(s) of the pieces.
2982 <a name="Copyright"></a>
2984 Next: <a rel="next" accesskey="n" href="#Copying">Copying</a>,
2985 Previous: <a rel="previous" accesskey="p" href="#Other-programs">Other programs</a>,
2986 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
2990 <h2 class="unnumbered">Copyright</h2>
2992 <p>Copyright © 1991 Digital Equipment Corporation, Maynard, Massachusetts.
2994 <p>All Rights Reserved.
2996 <p>Permission to use, copy, modify, and distribute this software and its
2997 documentation for any purpose and without fee is hereby granted,
2998 provided that the above copyright notice appear in all copies and that
2999 both that copyright notice and this permission notice appear in
3000 supporting documentation, and that the name of Digital not be
3001 used in advertising or publicity pertaining to distribution of the
3002 software without specific, written prior permission.
3004 <p>Digital disclaims all warranties with regard to this software, including
3005 all implied warranties of merchantability and fitness. In no event shall
3006 Digital be liable for any special, indirect or consequential damages or
3007 any damages whatsoever resulting from loss of use, data or profits,
3008 whether in an action of contract, negligence or other tortious action,
3009 arising out of or in connection with the use or performance of this
3012 <p>Enhancements copyright © 1992-2003, 2004, 2005, 2006, 2007,
3013 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
3015 <pre class="format">Published by the Free Software Foundation
3016 59 Temple Place - Suite 330
3017 Boston, MA 02111-1307 USA
3019 <p>Permission is granted to make and distribute verbatim copies of
3020 this manual provided the copyright notice and this permission notice
3021 are preserved on all copies.
3023 <p>Permission is granted to copy and distribute modified versions of this
3024 manual under the conditions for verbatim copying, provided also that the
3025 section entitled “GNU General Public License,”
3026 is included exactly as in the original, and provided that the entire
3027 resulting derived work is distributed under the terms of a permission
3028 notice identical to this one.
3030 <p>Permission is granted to copy and distribute translations of this manual
3031 into another language, under the above conditions for modified versions,
3032 except that the section entitled “GNU General Public License,”
3033 and this permission notice, may be included in translations approved by
3034 the Free Software Foundation instead of in the original English.
3037 <a name="Copying"></a>
3039 Next: <a rel="next" accesskey="n" href="#Index">Index</a>,
3040 Previous: <a rel="previous" accesskey="p" href="#Copyright">Copyright</a>,
3041 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
3045 <h2 class="unnumbered">GNU GENERAL PUBLIC LICENSE</h2>
3047 <!-- The GNU General Public License. -->
3048 <div align="center">Version 3, 29 June 2007</div>
3050 <!-- This file is intended to be included within another document, -->
3051 <!-- hence no sectioning command or @node. -->
3052 <pre class="display"> Copyright © 2007 Free Software Foundation, Inc. <a href="http://fsf.org/">http://fsf.org/</a>
3054 Everyone is permitted to copy and distribute verbatim copies of this
3055 license document, but changing it is not allowed.
3057 <h3 class="heading">Preamble</h3>
3059 <p>The GNU General Public License is a free, copyleft license for
3060 software and other kinds of works.
3062 <p>The licenses for most software and other practical works are designed
3063 to take away your freedom to share and change the works. By contrast,
3064 the GNU General Public License is intended to guarantee your freedom
3065 to share and change all versions of a program—to make sure it remains
3066 free software for all its users. We, the Free Software Foundation,
3067 use the GNU General Public License for most of our software; it
3068 applies also to any other work released this way by its authors. You
3069 can apply it to your programs, too.
3071 <p>When we speak of free software, we are referring to freedom, not
3072 price. Our General Public Licenses are designed to make sure that you
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3076 free programs, and that you know you can do these things.
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3079 these rights or asking you to surrender the rights. Therefore, you
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3100 <p>Some devices are designed to deny users access to install or run
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3122 <h3 class="heading">TERMS AND CONDITIONS</h3>
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3227 <p>Conveying under any other circumstances is permitted solely under the
3228 conditions stated below. Sublicensing is not allowed; section 10
3229 makes it unnecessary.
3231 <li>Protecting Users' Legal Rights From Anti-Circumvention Law.
3233 <p>No covered work shall be deemed part of an effective technological
3234 measure under any applicable law fulfilling obligations under article
3235 11 of the WIPO copyright treaty adopted on 20 December 1996, or
3236 similar laws prohibiting or restricting circumvention of such
3239 <p>When you convey a covered work, you waive any legal power to forbid
3240 circumvention of technological measures to the extent such
3241 circumvention is effected by exercising rights under this License with
3242 respect to the covered work, and you disclaim any intention to limit
3243 operation or modification of the work as a means of enforcing, against
3244 the work's users, your or third parties' legal rights to forbid
3245 circumvention of technological measures.
3247 <li>Conveying Verbatim Copies.
3249 <p>You may convey verbatim copies of the Program's source code as you
3250 receive it, in any medium, provided that you conspicuously and
3251 appropriately publish on each copy an appropriate copyright notice;
3252 keep intact all notices stating that this License and any
3253 non-permissive terms added in accord with section 7 apply to the code;
3254 keep intact all notices of the absence of any warranty; and give all
3255 recipients a copy of this License along with the Program.
3257 <p>You may charge any price or no price for each copy that you convey,
3258 and you may offer support or warranty protection for a fee.
3260 <li>Conveying Modified Source Versions.
3262 <p>You may convey a work based on the Program, or the modifications to
3263 produce it from the Program, in the form of source code under the
3264 terms of section 4, provided that you also meet all of these
3268 <li>The work must carry prominent notices stating that you modified it,
3269 and giving a relevant date.
3271 <li>The work must carry prominent notices stating that it is released
3272 under this License and any conditions added under section 7. This
3273 requirement modifies the requirement in section 4 to “keep intact all
3276 <li>You must license the entire work, as a whole, under this License to
3277 anyone who comes into possession of a copy. This License will
3278 therefore apply, along with any applicable section 7 additional terms,
3279 to the whole of the work, and all its parts, regardless of how they
3280 are packaged. This License gives no permission to license the work in
3281 any other way, but it does not invalidate such permission if you have
3282 separately received it.
3284 <li>If the work has interactive user interfaces, each must display
3285 Appropriate Legal Notices; however, if the Program has interactive
3286 interfaces that do not display Appropriate Legal Notices, your work
3287 need not make them do so.
3290 <p>A compilation of a covered work with other separate and independent
3291 works, which are not by their nature extensions of the covered work,
3292 and which are not combined with it such as to form a larger program,
3293 in or on a volume of a storage or distribution medium, is called an
3294 “aggregate” if the compilation and its resulting copyright are not
3295 used to limit the access or legal rights of the compilation's users
3296 beyond what the individual works permit. Inclusion of a covered work
3297 in an aggregate does not cause this License to apply to the other
3298 parts of the aggregate.
3300 <li>Conveying Non-Source Forms.
3302 <p>You may convey a covered work in object code form under the terms of
3303 sections 4 and 5, provided that you also convey the machine-readable
3304 Corresponding Source under the terms of this License, in one of these
3308 <li>Convey the object code in, or embodied in, a physical product
3309 (including a physical distribution medium), accompanied by the
3310 Corresponding Source fixed on a durable physical medium customarily
3311 used for software interchange.
3313 <li>Convey the object code in, or embodied in, a physical product
3314 (including a physical distribution medium), accompanied by a written
3315 offer, valid for at least three years and valid for as long as you
3316 offer spare parts or customer support for that product model, to give
3317 anyone who possesses the object code either (1) a copy of the
3318 Corresponding Source for all the software in the product that is
3319 covered by this License, on a durable physical medium customarily used
3320 for software interchange, for a price no more than your reasonable
3321 cost of physically performing this conveying of source, or (2) access
3322 to copy the Corresponding Source from a network server at no charge.
3324 <li>Convey individual copies of the object code with a copy of the written
3325 offer to provide the Corresponding Source. This alternative is
3326 allowed only occasionally and noncommercially, and only if you
3327 received the object code with such an offer, in accord with subsection
3330 <li>Convey the object code by offering access from a designated place
3331 (gratis or for a charge), and offer equivalent access to the
3332 Corresponding Source in the same way through the same place at no
3333 further charge. You need not require recipients to copy the
3334 Corresponding Source along with the object code. If the place to copy
3335 the object code is a network server, the Corresponding Source may be
3336 on a different server (operated by you or a third party) that supports
3337 equivalent copying facilities, provided you maintain clear directions
3338 next to the object code saying where to find the Corresponding Source.
3339 Regardless of what server hosts the Corresponding Source, you remain
3340 obligated to ensure that it is available for as long as needed to
3341 satisfy these requirements.
3343 <li>Convey the object code using peer-to-peer transmission, provided you
3344 inform other peers where the object code and Corresponding Source of
3345 the work are being offered to the general public at no charge under
3350 <p>A separable portion of the object code, whose source code is excluded
3351 from the Corresponding Source as a System Library, need not be
3352 included in conveying the object code work.
3354 <p>A “User Product” is either (1) a “consumer product”, which means any
3355 tangible personal property which is normally used for personal,
3356 family, or household purposes, or (2) anything designed or sold for
3357 incorporation into a dwelling. In determining whether a product is a
3358 consumer product, doubtful cases shall be resolved in favor of
3359 coverage. For a particular product received by a particular user,
3360 “normally used” refers to a typical or common use of that class of
3361 product, regardless of the status of the particular user or of the way
3362 in which the particular user actually uses, or expects or is expected
3363 to use, the product. A product is a consumer product regardless of
3364 whether the product has substantial commercial, industrial or
3365 non-consumer uses, unless such uses represent the only significant
3366 mode of use of the product.
3368 <p>“Installation Information” for a User Product means any methods,
3369 procedures, authorization keys, or other information required to
3370 install and execute modified versions of a covered work in that User
3371 Product from a modified version of its Corresponding Source. The
3372 information must suffice to ensure that the continued functioning of
3373 the modified object code is in no case prevented or interfered with
3374 solely because modification has been made.
3376 <p>If you convey an object code work under this section in, or with, or
3377 specifically for use in, a User Product, and the conveying occurs as
3378 part of a transaction in which the right of possession and use of the
3379 User Product is transferred to the recipient in perpetuity or for a
3380 fixed term (regardless of how the transaction is characterized), the
3381 Corresponding Source conveyed under this section must be accompanied
3382 by the Installation Information. But this requirement does not apply
3383 if neither you nor any third party retains the ability to install
3384 modified object code on the User Product (for example, the work has
3385 been installed in ROM).
3387 <p>The requirement to provide Installation Information does not include a
3388 requirement to continue to provide support service, warranty, or
3389 updates for a work that has been modified or installed by the
3390 recipient, or for the User Product in which it has been modified or
3391 installed. Access to a network may be denied when the modification
3392 itself materially and adversely affects the operation of the network
3393 or violates the rules and protocols for communication across the
3396 <p>Corresponding Source conveyed, and Installation Information provided,
3397 in accord with this section must be in a format that is publicly
3398 documented (and with an implementation available to the public in
3399 source code form), and must require no special password or key for
3400 unpacking, reading or copying.
3402 <li>Additional Terms.
3404 <p>“Additional permissions” are terms that supplement the terms of this
3405 License by making exceptions from one or more of its conditions.
3406 Additional permissions that are applicable to the entire Program shall
3407 be treated as though they were included in this License, to the extent
3408 that they are valid under applicable law. If additional permissions
3409 apply only to part of the Program, that part may be used separately
3410 under those permissions, but the entire Program remains governed by
3411 this License without regard to the additional permissions.
3413 <p>When you convey a copy of a covered work, you may at your option
3414 remove any additional permissions from that copy, or from any part of
3415 it. (Additional permissions may be written to require their own
3416 removal in certain cases when you modify the work.) You may place
3417 additional permissions on material, added by you to a covered work,
3418 for which you have or can give appropriate copyright permission.
3420 <p>Notwithstanding any other provision of this License, for material you
3421 add to a covered work, you may (if authorized by the copyright holders
3422 of that material) supplement the terms of this License with terms:
3425 <li>Disclaiming warranty or limiting liability differently from the terms
3426 of sections 15 and 16 of this License; or
3428 <li>Requiring preservation of specified reasonable legal notices or author
3429 attributions in that material or in the Appropriate Legal Notices
3430 displayed by works containing it; or
3432 <li>Prohibiting misrepresentation of the origin of that material, or
3433 requiring that modified versions of such material be marked in
3434 reasonable ways as different from the original version; or
3436 <li>Limiting the use for publicity purposes of names of licensors or
3437 authors of the material; or
3439 <li>Declining to grant rights under trademark law for use of some trade
3440 names, trademarks, or service marks; or
3442 <li>Requiring indemnification of licensors and authors of that material by
3443 anyone who conveys the material (or modified versions of it) with
3444 contractual assumptions of liability to the recipient, for any
3445 liability that these contractual assumptions directly impose on those
3446 licensors and authors.
3449 <p>All other non-permissive additional terms are considered “further
3450 restrictions” within the meaning of section 10. If the Program as you
3451 received it, or any part of it, contains a notice stating that it is
3452 governed by this License along with a term that is a further
3453 restriction, you may remove that term. If a license document contains
3454 a further restriction but permits relicensing or conveying under this
3455 License, you may add to a covered work material governed by the terms
3456 of that license document, provided that the further restriction does
3457 not survive such relicensing or conveying.
3459 <p>If you add terms to a covered work in accord with this section, you
3460 must place, in the relevant source files, a statement of the
3461 additional terms that apply to those files, or a notice indicating
3462 where to find the applicable terms.
3464 <p>Additional terms, permissive or non-permissive, may be stated in the
3465 form of a separately written license, or stated as exceptions; the
3466 above requirements apply either way.
3470 <p>You may not propagate or modify a covered work except as expressly
3471 provided under this License. Any attempt otherwise to propagate or
3472 modify it is void, and will automatically terminate your rights under
3473 this License (including any patent licenses granted under the third
3474 paragraph of section 11).
3476 <p>However, if you cease all violation of this License, then your license
3477 from a particular copyright holder is reinstated (a) provisionally,
3478 unless and until the copyright holder explicitly and finally
3479 terminates your license, and (b) permanently, if the copyright holder
3480 fails to notify you of the violation by some reasonable means prior to
3481 60 days after the cessation.
3483 <p>Moreover, your license from a particular copyright holder is
3484 reinstated permanently if the copyright holder notifies you of the
3485 violation by some reasonable means, this is the first time you have
3486 received notice of violation of this License (for any work) from that
3487 copyright holder, and you cure the violation prior to 30 days after
3488 your receipt of the notice.
3490 <p>Termination of your rights under this section does not terminate the
3491 licenses of parties who have received copies or rights from you under
3492 this License. If your rights have been terminated and not permanently
3493 reinstated, you do not qualify to receive new licenses for the same
3494 material under section 10.
3496 <li>Acceptance Not Required for Having Copies.
3498 <p>You are not required to accept this License in order to receive or run
3499 a copy of the Program. Ancillary propagation of a covered work
3500 occurring solely as a consequence of using peer-to-peer transmission
3501 to receive a copy likewise does not require acceptance. However,
3502 nothing other than this License grants you permission to propagate or
3503 modify any covered work. These actions infringe copyright if you do
3504 not accept this License. Therefore, by modifying or propagating a
3505 covered work, you indicate your acceptance of this License to do so.
3507 <li>Automatic Licensing of Downstream Recipients.
3509 <p>Each time you convey a covered work, the recipient automatically
3510 receives a license from the original licensors, to run, modify and
3511 propagate that work, subject to this License. You are not responsible
3512 for enforcing compliance by third parties with this License.
3514 <p>An “entity transaction” is a transaction transferring control of an
3515 organization, or substantially all assets of one, or subdividing an
3516 organization, or merging organizations. If propagation of a covered
3517 work results from an entity transaction, each party to that
3518 transaction who receives a copy of the work also receives whatever
3519 licenses to the work the party's predecessor in interest had or could
3520 give under the previous paragraph, plus a right to possession of the
3521 Corresponding Source of the work from the predecessor in interest, if
3522 the predecessor has it or can get it with reasonable efforts.
3524 <p>You may not impose any further restrictions on the exercise of the
3525 rights granted or affirmed under this License. For example, you may
3526 not impose a license fee, royalty, or other charge for exercise of
3527 rights granted under this License, and you may not initiate litigation
3528 (including a cross-claim or counterclaim in a lawsuit) alleging that
3529 any patent claim is infringed by making, using, selling, offering for
3530 sale, or importing the Program or any portion of it.
3534 <p>A “contributor” is a copyright holder who authorizes use under this
3535 License of the Program or a work on which the Program is based. The
3536 work thus licensed is called the contributor's “contributor version”.
3538 <p>A contributor's “essential patent claims” are all patent claims owned
3539 or controlled by the contributor, whether already acquired or
3540 hereafter acquired, that would be infringed by some manner, permitted
3541 by this License, of making, using, or selling its contributor version,
3542 but do not include claims that would be infringed only as a
3543 consequence of further modification of the contributor version. For
3544 purposes of this definition, “control” includes the right to grant
3545 patent sublicenses in a manner consistent with the requirements of
3548 <p>Each contributor grants you a non-exclusive, worldwide, royalty-free
3549 patent license under the contributor's essential patent claims, to
3550 make, use, sell, offer for sale, import and otherwise run, modify and
3551 propagate the contents of its contributor version.
3553 <p>In the following three paragraphs, a “patent license” is any express
3554 agreement or commitment, however denominated, not to enforce a patent
3555 (such as an express permission to practice a patent or covenant not to
3556 sue for patent infringement). To “grant” such a patent license to a
3557 party means to make such an agreement or commitment not to enforce a
3558 patent against the party.
3560 <p>If you convey a covered work, knowingly relying on a patent license,
3561 and the Corresponding Source of the work is not available for anyone
3562 to copy, free of charge and under the terms of this License, through a
3563 publicly available network server or other readily accessible means,
3564 then you must either (1) cause the Corresponding Source to be so
3565 available, or (2) arrange to deprive yourself of the benefit of the
3566 patent license for this particular work, or (3) arrange, in a manner
3567 consistent with the requirements of this License, to extend the patent
3568 license to downstream recipients. “Knowingly relying” means you have
3569 actual knowledge that, but for the patent license, your conveying the
3570 covered work in a country, or your recipient's use of the covered work
3571 in a country, would infringe one or more identifiable patents in that
3572 country that you have reason to believe are valid.
3574 <p>If, pursuant to or in connection with a single transaction or
3575 arrangement, you convey, or propagate by procuring conveyance of, a
3576 covered work, and grant a patent license to some of the parties
3577 receiving the covered work authorizing them to use, propagate, modify
3578 or convey a specific copy of the covered work, then the patent license
3579 you grant is automatically extended to all recipients of the covered
3580 work and works based on it.
3582 <p>A patent license is “discriminatory” if it does not include within the
3583 scope of its coverage, prohibits the exercise of, or is conditioned on
3584 the non-exercise of one or more of the rights that are specifically
3585 granted under this License. You may not convey a covered work if you
3586 are a party to an arrangement with a third party that is in the
3587 business of distributing software, under which you make payment to the
3588 third party based on the extent of your activity of conveying the
3589 work, and under which the third party grants, to any of the parties
3590 who would receive the covered work from you, a discriminatory patent
3591 license (a) in connection with copies of the covered work conveyed by
3592 you (or copies made from those copies), or (b) primarily for and in
3593 connection with specific products or compilations that contain the
3594 covered work, unless you entered into that arrangement, or that patent
3595 license was granted, prior to 28 March 2007.
3597 <p>Nothing in this License shall be construed as excluding or limiting
3598 any implied license or other defenses to infringement that may
3599 otherwise be available to you under applicable patent law.
3601 <li>No Surrender of Others' Freedom.
3603 <p>If conditions are imposed on you (whether by court order, agreement or
3604 otherwise) that contradict the conditions of this License, they do not
3605 excuse you from the conditions of this License. If you cannot convey
3606 a covered work so as to satisfy simultaneously your obligations under
3607 this License and any other pertinent obligations, then as a
3608 consequence you may not convey it at all. For example, if you agree
3609 to terms that obligate you to collect a royalty for further conveying
3610 from those to whom you convey the Program, the only way you could
3611 satisfy both those terms and this License would be to refrain entirely
3612 from conveying the Program.
3614 <li>Use with the GNU Affero General Public License.
3616 <p>Notwithstanding any other provision of this License, you have
3617 permission to link or combine any covered work with a work licensed
3618 under version 3 of the GNU Affero General Public License into a single
3619 combined work, and to convey the resulting work. The terms of this
3620 License will continue to apply to the part which is the covered work,
3621 but the special requirements of the GNU Affero General Public License,
3622 section 13, concerning interaction through a network will apply to the
3623 combination as such.
3625 <li>Revised Versions of this License.
3627 <p>The Free Software Foundation may publish revised and/or new versions
3628 of the GNU General Public License from time to time. Such new
3629 versions will be similar in spirit to the present version, but may
3630 differ in detail to address new problems or concerns.
3632 <p>Each version is given a distinguishing version number. If the Program
3633 specifies that a certain numbered version of the GNU General Public
3634 License “or any later version” applies to it, you have the option of
3635 following the terms and conditions either of that numbered version or
3636 of any later version published by the Free Software Foundation. If
3637 the Program does not specify a version number of the GNU General
3638 Public License, you may choose any version ever published by the Free
3639 Software Foundation.
3641 <p>If the Program specifies that a proxy can decide which future versions
3642 of the GNU General Public License can be used, that proxy's public
3643 statement of acceptance of a version permanently authorizes you to
3644 choose that version for the Program.
3646 <p>Later license versions may give you additional or different
3647 permissions. However, no additional obligations are imposed on any
3648 author or copyright holder as a result of your choosing to follow a
3651 <li>Disclaimer of Warranty.
3653 <p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
3654 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
3655 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT
3656 WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
3657 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
3658 A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
3659 PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
3660 DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
3663 <li>Limitation of Liability.
3665 <p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
3666 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
3667 CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
3668 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
3669 ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
3670 NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
3671 LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
3672 TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
3673 PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
3675 <li>Interpretation of Sections 15 and 16.
3677 <p>If the disclaimer of warranty and limitation of liability provided
3678 above cannot be given local legal effect according to their terms,
3679 reviewing courts shall apply local law that most closely approximates
3680 an absolute waiver of all civil liability in connection with the
3681 Program, unless a warranty or assumption of liability accompanies a
3682 copy of the Program in return for a fee.
3686 <h3 class="heading">END OF TERMS AND CONDITIONS</h3>
3688 <h3 class="heading">How to Apply These Terms to Your New Programs</h3>
3690 <p>If you develop a new program, and you want it to be of the greatest
3691 possible use to the public, the best way to achieve this is to make it
3692 free software which everyone can redistribute and change under these
3695 <p>To do so, attach the following notices to the program. It is safest
3696 to attach them to the start of each source file to most effectively
3697 state the exclusion of warranty; and each file should have at least
3698 the “copyright” line and a pointer to where the full notice is found.
3700 <pre class="smallexample"> <var>one line to give the program's name and a brief idea of what it does.</var>
3701 Copyright (C) <var>year</var> <var>name of author</var>
3703 This program is free software: you can redistribute it and/or modify
3704 it under the terms of the GNU General Public License as published by
3705 the Free Software Foundation, either version 3 of the License, or (at
3706 your option) any later version.
3708 This program is distributed in the hope that it will be useful, but
3709 WITHOUT ANY WARRANTY; without even the implied warranty of
3710 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3711 General Public License for more details.
3713 You should have received a copy of the GNU General Public License
3714 along with this program. If not, see <a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>.
3716 <p>Also add information on how to contact you by electronic and paper mail.
3718 <p>If the program does terminal interaction, make it output a short
3719 notice like this when it starts in an interactive mode:
3721 <pre class="smallexample"> <var>program</var> Copyright (C) <var>year</var> <var>name of author</var>
3722 This program comes with ABSOLUTELY NO WARRANTY; for details type ‘<samp><span class="samp">show w</span></samp>’.
3723 This is free software, and you are welcome to redistribute it
3724 under certain conditions; type ‘<samp><span class="samp">show c</span></samp>’ for details.
3726 <p>The hypothetical commands ‘<samp><span class="samp">show w</span></samp>’ and ‘<samp><span class="samp">show c</span></samp>’ should show
3727 the appropriate parts of the General Public License. Of course, your
3728 program's commands might be different; for a GUI interface, you would
3729 use an “about box”.
3731 <p>You should also get your employer (if you work as a programmer) or school,
3732 if any, to sign a “copyright disclaimer” for the program, if necessary.
3733 For more information on this, and how to apply and follow the GNU GPL, see
3734 <a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>.
3736 <p>The GNU General Public License does not permit incorporating your
3737 program into proprietary programs. If your program is a subroutine
3738 library, you may consider it more useful to permit linking proprietary
3739 applications with the library. If this is what you want to do, use
3740 the GNU Lesser General Public License instead of this License. But
3741 first, please read <a href="http://www.gnu.org/philosophy/why-not-lgpl.html">http://www.gnu.org/philosophy/why-not-lgpl.html</a>.
3745 <a name="Index"></a>
3747 Previous: <a rel="previous" accesskey="p" href="#Copying">Copying</a>,
3748 Up: <a rel="up" accesskey="u" href="#Top">Top</a>
3752 <h2 class="unnumbered">Index</h2>
3754 <ul class="index-cp" compact>
3755 <li><a href="#index-g_t_002danimateSpeed_002c-option-407">-animateSpeed, option</a>: <a href="#User-interface-options">User interface options</a></li>
3756 <li><a href="#index-g_t_002dautoDisplayComment_002c-option-408">-autoDisplayComment, option</a>: <a href="#User-interface-options">User interface options</a></li>
3757 <li><a href="#index-g_t_002dautoDisplayTags_002c-option-409">-autoDisplayTags, option</a>: <a href="#User-interface-options">User interface options</a></li>
3758 <li><a href="#index-g_t_002dpasteSelection_002c-option-410">-pasteSelection, option</a>: <a href="#User-interface-options">User interface options</a></li>
3759 <li><a href="#index-g_t_002eicsrc-252">.icsrc</a>: <a href="#ICS-options">ICS options</a></li>
3760 <li><a href="#index-g_t_003c_002c-Button-33"><, Button</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3761 <li><a href="#index-g_t_003c_003c_002c-Button-37"><<, Button</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3762 <li><a href="#index-g_t_003e_002c-Button-35">>, Button</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3763 <li><a href="#index-g_t_003e_003e_002c-Button-39">>>, Button</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3764 <li><a href="#index-abort_002c-ICS-command-452">abort, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3765 <li><a href="#index-Abort_002c-Menu-Item-70">Abort, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3766 <li><a href="#index-About-XBoard_002c-Menu-Item-146">About XBoard, Menu Item</a>: <a href="#Help-Menu">Help Menu</a></li>
3767 <li><a href="#index-accept_002c-ICS-command-448">accept, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3768 <li><a href="#index-Accept_002c-Menu-Item-65">Accept, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3769 <li><a href="#index-Action_002c-Menu-64">Action, Menu</a>: <a href="#Action-Menu">Action Menu</a></li>
3770 <li><a href="#index-adjourn_002c-ICS-command-451">adjourn, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3771 <li><a href="#index-Adjourn_002c-Menu-Item-69">Adjourn, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3772 <li><a href="#index-Adjudicate-Draw_002c-Menu-Item-77">Adjudicate Draw, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3773 <li><a href="#index-Adjudicate-to-Black_002c-Menu-Item-76">Adjudicate to Black, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3774 <li><a href="#index-Adjudicate-to-White_002c-Menu-Item-75">Adjudicate to White, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3775 <li><a href="#index-adjudicateDrawMoves_002c-option-413">adjudicateDrawMoves, option</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
3776 <li><a href="#index-adjudicateLossThreshold_002c-option-412">adjudicateLossThreshold, option</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
3777 <li><a href="#index-Adjudications_002c-Menu-Item-91">Adjudications, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3778 <li><a href="#index-alarm_002c-option-271">alarm, option</a>: <a href="#ICS-options">ICS options</a></li>
3779 <li><a href="#index-Always-Queen_002c-Menu-Item-99">Always Queen, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3780 <li><a href="#index-alwaysPromoteToQueen_002c-option-354">alwaysPromoteToQueen, option</a>: <a href="#User-interface-options">User interface options</a></li>
3781 <li><a href="#index-Analysis-Mode_002c-Menu-Item-57">Analysis Mode, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
3782 <li><a href="#index-Analyze-File_002c-Menu-Item-58">Analyze File, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
3783 <li><a href="#index-Animate-Dragging_002c-Menu-Item-100">Animate Dragging, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3784 <li><a href="#index-Animate-Moving_002c-Menu-Item-101">Animate Moving, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3785 <li><a href="#index-animate_002c-option-405">animate, option</a>: <a href="#User-interface-options">User interface options</a></li>
3786 <li><a href="#index-animateDragging_002c-option-404">animateDragging, option</a>: <a href="#User-interface-options">User interface options</a></li>
3787 <li><a href="#index-animateMoving_002c-option-406">animateMoving, option</a>: <a href="#User-interface-options">User interface options</a></li>
3788 <li><a href="#index-Animation-Speed_002c-Menu-Item-119">Animation Speed, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3789 <li><a href="#index-Annotate_002c-Menu-Item-30">Annotate, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3790 <li><a href="#index-at-sign_002c-option-339">at sign, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
3791 <li><a href="#index-Authors-468">Authors</a>: <a href="#Contributors">Contributors</a></li>
3792 <li><a href="#index-Auto-Comment_002c-Menu-Item-122">Auto Comment, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3793 <li><a href="#index-Auto-Flag_002c-Menu-Item-102">Auto Flag, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3794 <li><a href="#index-Auto-Flip-View_002c-Menu-Item-103">Auto Flip View, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3795 <li><a href="#index-Auto-Kibitz_002c-Menu-Item-121">Auto Kibitz, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3796 <li><a href="#index-Auto-Observe_002c-Menu-Item-123">Auto Observe, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3797 <li><a href="#index-Auto-Raise-Board_002c-Menu-Item-124">Auto Raise Board, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3798 <li><a href="#index-Auto-Save_002c-Menu-Item-125">Auto Save, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3799 <li><a href="#index-Auto_002dRefresh-Seek-Graph_002c-Menu-Item-131">Auto-Refresh Seek Graph, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3800 <li><a href="#index-autobs_002c-option-260">autobs, option</a>: <a href="#ICS-options">ICS options</a></li>
3801 <li><a href="#index-autoCallFlag_002c-option-259">autoCallFlag, option</a>: <a href="#ICS-options">ICS options</a></li>
3802 <li><a href="#index-autocomm_002c-option-256">autocomm, option</a>: <a href="#ICS-options">ICS options</a></li>
3803 <li><a href="#index-autoComment_002c-option-257">autoComment, option</a>: <a href="#ICS-options">ICS options</a></li>
3804 <li><a href="#index-autoflag_002c-option-258">autoflag, option</a>: <a href="#ICS-options">ICS options</a></li>
3805 <li><a href="#index-autoflip_002c-option-364">autoflip, option</a>: <a href="#User-interface-options">User interface options</a></li>
3806 <li><a href="#index-autoFlipView_002c-option-365">autoFlipView, option</a>: <a href="#User-interface-options">User interface options</a></li>
3807 <li><a href="#index-autoKibitz_002c-option-262">autoKibitz, option</a>: <a href="#ICS-options">ICS options</a></li>
3808 <li><a href="#index-autoObserve_002c-option-261">autoObserve, option</a>: <a href="#ICS-options">ICS options</a></li>
3809 <li><a href="#index-autoraise_002c-option-362">autoraise, option</a>: <a href="#User-interface-options">User interface options</a></li>
3810 <li><a href="#index-autoRaiseBoard_002c-option-363">autoRaiseBoard, option</a>: <a href="#User-interface-options">User interface options</a></li>
3811 <li><a href="#index-autoRefresh_002c-option-265">autoRefresh, option</a>: <a href="#ICS-options">ICS options</a></li>
3812 <li><a href="#index-autosave_002c-option-322">autosave, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
3813 <li><a href="#index-autoSaveGames_002c-option-323">autoSaveGames, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
3814 <li><a href="#index-ave-Game-Options_002c-Menu-Item-94">ave Game Options, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3815 <li><a href="#index-Back-to-Start_002c-Menu-Item-36">Back to Start, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3816 <li><a href="#index-Background-Observe_002c-Menu-Item-126">Background Observe, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3817 <li><a href="#index-backgroundObserve_002c-option-266">backgroundObserve, option</a>: <a href="#ICS-options">ICS options</a></li>
3818 <li><a href="#index-Backward_002c-Menu-Item-32">Backward, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3819 <li><a href="#index-Basic-operation-3">Basic operation</a>: <a href="#Basic-operation">Basic operation</a></li>
3820 <li><a href="#index-bell_002c-option-347">bell, option</a>: <a href="#User-interface-options">User interface options</a></li>
3821 <li><a href="#index-bitmapDirectory_002c-option-393">bitmapDirectory, option</a>: <a href="#User-interface-options">User interface options</a></li>
3822 <li><a href="#index-blackPieceColor_002c-option-398">blackPieceColor, option</a>: <a href="#User-interface-options">User interface options</a></li>
3823 <li><a href="#index-blind_002c-option-383">blind, option</a>: <a href="#User-interface-options">User interface options</a></li>
3824 <li><a href="#index-Blindfold_002c-Menu-Item-104">Blindfold, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3825 <li><a href="#index-blindfold_002c-option-384">blindfold, option</a>: <a href="#User-interface-options">User interface options</a></li>
3826 <li><a href="#index-bm_002c-option-392">bm, option</a>: <a href="#User-interface-options">User interface options</a></li>
3827 <li><a href="#index-board-size-359">board size</a>: <a href="#User-interface-options">User interface options</a></li>
3828 <li><a href="#index-Board_002c-Menu-Item-50">Board, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
3829 <li><a href="#index-boardHeight_002c-option-425">boardHeight, option</a>: <a href="#Other-options">Other options</a></li>
3830 <li><a href="#index-boardSize_002c-option-358">boardSize, option</a>: <a href="#User-interface-options">User interface options</a></li>
3831 <li><a href="#index-boardWidth_002c-option-426">boardWidth, option</a>: <a href="#Other-options">Other options</a></li>
3832 <li><a href="#index-Book_002c-Menu-Item-84">Book, Menu Item</a>: <a href="#Engine-Menu">Engine Menu</a></li>
3833 <li><a href="#index-Bug-reports-464">Bug reports</a>: <a href="#Problems">Problems</a></li>
3834 <li><a href="#index-Bugs-463">Bugs</a>: <a href="#Problems">Problems</a></li>
3835 <li><a href="#index-Bugs-462">Bugs</a>: <a href="#Limitations">Limitations</a></li>
3836 <li><a href="#index-buttons_002c-option-370">buttons, option</a>: <a href="#User-interface-options">User interface options</a></li>
3837 <li><a href="#index-Call-Flag_002c-Menu-Item-67">Call Flag, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3838 <li><a href="#index-checkMates_002c-option-414">checkMates, option</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
3839 <li><a href="#index-Chess-engine-options-156">Chess engine options</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3840 <li><a href="#index-CHESSDIR-460">CHESSDIR</a>: <a href="#Environment">Environment</a></li>
3841 <li><a href="#index-clock_002c-option-163">clock, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3842 <li><a href="#index-clockFont_002c-option-385">clockFont, option</a>: <a href="#User-interface-options">User interface options</a></li>
3843 <li><a href="#index-clockMode_002c-option-164">clockMode, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3844 <li><a href="#index-cmail-470">cmail</a>: <a href="#CMail">CMail</a></li>
3845 <li><a href="#index-colorChallenge_002c-option-288">colorChallenge, option</a>: <a href="#ICS-options">ICS options</a></li>
3846 <li><a href="#index-colorChannel_002c-option-285">colorChannel, option</a>: <a href="#ICS-options">ICS options</a></li>
3847 <li><a href="#index-colorChannel1_002c-option-284">colorChannel1, option</a>: <a href="#ICS-options">ICS options</a></li>
3848 <li><a href="#index-Colorize-Messages_002c-Menu-Item-139">Colorize Messages, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3849 <li><a href="#index-colorize_002c-option-280">colorize, option</a>: <a href="#ICS-options">ICS options</a></li>
3850 <li><a href="#index-colorKibitz_002c-option-286">colorKibitz, option</a>: <a href="#ICS-options">ICS options</a></li>
3851 <li><a href="#index-colorNormal_002c-option-291">colorNormal, option</a>: <a href="#ICS-options">ICS options</a></li>
3852 <li><a href="#index-colorRequest_002c-option-289">colorRequest, option</a>: <a href="#ICS-options">ICS options</a></li>
3853 <li><a href="#index-Colors-396">Colors</a>: <a href="#User-interface-options">User interface options</a></li>
3854 <li><a href="#index-Colors-279">Colors</a>: <a href="#ICS-options">ICS options</a></li>
3855 <li><a href="#index-colorSeek_002c-option-290">colorSeek, option</a>: <a href="#ICS-options">ICS options</a></li>
3856 <li><a href="#index-colorShout_002c-option-282">colorShout, option</a>: <a href="#ICS-options">ICS options</a></li>
3857 <li><a href="#index-colorSShout_002c-option-283">colorSShout, option</a>: <a href="#ICS-options">ICS options</a></li>
3858 <li><a href="#index-colorTell_002c-option-287">colorTell, option</a>: <a href="#ICS-options">ICS options</a></li>
3859 <li><a href="#index-Comments_002c-Menu-Item-48">Comments, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
3860 <li><a href="#index-Common-Engine_002c-Menu-Item-90">Common Engine, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3861 <li><a href="#index-Contributors-469">Contributors</a>: <a href="#Contributors">Contributors</a></li>
3862 <li><a href="#index-coordFont_002c-option-387">coordFont, option</a>: <a href="#User-interface-options">User interface options</a></li>
3863 <li><a href="#index-coords_002c-option-360">coords, option</a>: <a href="#User-interface-options">User interface options</a></li>
3864 <li><a href="#index-Copy-Game_002c-Menu-Item-21">Copy Game, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3865 <li><a href="#index-Copy-Position_002c-Menu-Item-22">Copy Position, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3866 <li><a href="#index-darkSquareColor_002c-option-400">darkSquareColor, option</a>: <a href="#User-interface-options">User interface options</a></li>
3867 <li><a href="#index-debug_002c-option-430">debug, option</a>: <a href="#Other-options">Other options</a></li>
3868 <li><a href="#index-debugFile_002c-option-432">debugFile, option</a>: <a href="#Other-options">Other options</a></li>
3869 <li><a href="#index-debugMode_002c-option-431">debugMode, option</a>: <a href="#Other-options">Other options</a></li>
3870 <li><a href="#index-decline_002c-ICS-command-449">decline, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3871 <li><a href="#index-Decline_002c-Menu-Item-66">Decline, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3872 <li><a href="#index-defaultCacheSizeEGTB_002c-option-231">defaultCacheSizeEGTB, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3873 <li><a href="#index-defaultFrcPosition_002c-option-428">defaultFrcPosition, option</a>: <a href="#Other-options">Other options</a></li>
3874 <li><a href="#index-defaultHashSize_002c-option-230">defaultHashSize, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3875 <li><a href="#index-defaultPathEGTB_002c-option-232">defaultPathEGTB, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3876 <li><a href="#index-delayAfterQuit_002c-option-441">delayAfterQuit, option</a>: <a href="#Other-options">Other options</a></li>
3877 <li><a href="#index-delayBeforeQuit_002c-option-440">delayBeforeQuit, option</a>: <a href="#Other-options">Other options</a></li>
3878 <li><a href="#index-display_002c-option-342">display, option</a>: <a href="#User-interface-options">User interface options</a></li>
3879 <li><a href="#index-drag_002c-option-403">drag, option</a>: <a href="#User-interface-options">User interface options</a></li>
3880 <li><a href="#index-draw_002c-ICS-command-450">draw, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3881 <li><a href="#index-Draw_002c-Menu-Item-68">Draw, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
3882 <li><a href="#index-Drop-Menu_002c-Menu-Item-105">Drop Menu, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3883 <li><a href="#index-dropMenu_002c-option-310">dropMenu, option</a>: <a href="#ICS-options">ICS options</a></li>
3884 <li><a href="#index-Dual-Board_002c-Menu-Item-127">Dual Board, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3885 <li><a href="#index-dualBoard_002c-option-267">dualBoard, option</a>: <a href="#ICS-options">ICS options</a></li>
3886 <li><a href="#index-Edit-Comment_002c-Menu-Item-28">Edit Comment, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3887 <li><a href="#index-Edit-Game_002c-Menu-Item-25">Edit Game, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3888 <li><a href="#index-Edit-Menu-20">Edit Menu</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3889 <li><a href="#index-Edit-Position_002c-Menu-Item-26">Edit Position, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3890 <li><a href="#index-Edit-Tags_002c-Menu-Item-27">Edit Tags, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3891 <li><a href="#index-egtFormats_002c-option-233">egtFormats, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3892 <li><a href="#index-Engine-_00231-Settings_002c-Menu-Item-81">Engine #1 Settings, Menu Item</a>: <a href="#Engine-Menu">Engine Menu</a></li>
3893 <li><a href="#index-Engine-_00232-Settings_002c-Menu-Item-82">Engine #2 Settings, Menu Item</a>: <a href="#Engine-Menu">Engine Menu</a></li>
3894 <li><a href="#index-Engine-Menu-78">Engine Menu</a>: <a href="#Engine-Menu">Engine Menu</a></li>
3895 <li><a href="#index-Engine-Settings-215">Engine Settings</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3896 <li><a href="#index-Engine-Settings_002c-Menu-Item-80">Engine Settings, Menu Item</a>: <a href="#Engine-Menu">Engine Menu</a></li>
3897 <li><a href="#index-engineDebugOutput_002c-option-434">engineDebugOutput, option</a>: <a href="#Other-options">Other options</a></li>
3898 <li><a href="#index-Environment-variables-459">Environment variables</a>: <a href="#Environment">Environment</a></li>
3899 <li><a href="#index-examine_002c-ICS-command-457">examine, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3900 <li><a href="#index-Exit_002c-Menu-Item-18">Exit, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
3901 <li><a href="#index-exit_002c-option-349">exit, option</a>: <a href="#User-interface-options">User interface options</a></li>
3902 <li><a href="#index-fb_002c-option-187">fb, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3903 <li><a href="#index-fcp_002c-option-183">fcp, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3904 <li><a href="#index-fd_002c-option-193">fd, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3905 <li><a href="#index-fh_002c-option-189">fh, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3906 <li><a href="#index-File-Menu-5">File Menu</a>: <a href="#File-Menu">File Menu</a></li>
3907 <li><a href="#index-finger_002c-ICS-command-453">finger, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3908 <li><a href="#index-First-Black-Move_002c-Menu-Item-136">First Black Move, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3909 <li><a href="#index-First-White-Move_002c-Menu-Item-135">First White Move, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3910 <li><a href="#index-firstChessProgram_002c-option-184">firstChessProgram, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3911 <li><a href="#index-firstComputerString_002c-option-199">firstComputerString, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3912 <li><a href="#index-firstDirectory_002c-option-194">firstDirectory, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3913 <li><a href="#index-firstHasOwnBookUCI_002c-option-226">firstHasOwnBookUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3914 <li><a href="#index-firstHost_002c-option-190">firstHost, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3915 <li><a href="#index-firstIsUCI_002c-option-219">firstIsUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3916 <li><a href="#index-firstNeedsNoncompliantFEN_002c-option-212">firstNeedsNoncompliantFEN, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3917 <li><a href="#index-firstNPS_002c-option-169">firstNPS, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3918 <li><a href="#index-firstOptions_002c-option-210">firstOptions, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3919 <li><a href="#index-firstPlaysBlack_002c-option-188">firstPlaysBlack, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3920 <li><a href="#index-firstProtocolVersion_002c-option-205">firstProtocolVersion, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3921 <li><a href="#index-firstScoreAbs_002c-option-207">firstScoreAbs, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3922 <li><a href="#index-firstTimeOdds_002c-option-171">firstTimeOdds, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3923 <li><a href="#index-firstXBook_002c-option-228">firstXBook, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3924 <li><a href="#index-Flash-Moves_002c-Menu-Item-117">Flash Moves, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3925 <li><a href="#index-Flash-Rate_002c-Menu-Item-118">Flash Rate, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3926 <li><a href="#index-flash_002c-option-377">flash, option</a>: <a href="#User-interface-options">User interface options</a></li>
3927 <li><a href="#index-flashCount_002c-option-375">flashCount, option</a>: <a href="#User-interface-options">User interface options</a></li>
3928 <li><a href="#index-flashRate_002c-option-376">flashRate, option</a>: <a href="#User-interface-options">User interface options</a></li>
3929 <li><a href="#index-Flip-View_002c-Menu-Item-42">Flip View, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
3930 <li><a href="#index-flip_002c-option-366">flip, option</a>: <a href="#User-interface-options">User interface options</a></li>
3931 <li><a href="#index-flipView_002c-option-367">flipView, option</a>: <a href="#User-interface-options">User interface options</a></li>
3932 <li><a href="#index-fNoOwnBookUCI_002c-option-224">fNoOwnBookUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3933 <li><a href="#index-Font-390">Font</a>: <a href="#User-interface-options">User interface options</a></li>
3934 <li><a href="#index-Font_002c-clock-386">Font, clock</a>: <a href="#User-interface-options">User interface options</a></li>
3935 <li><a href="#index-Font_002c-coordinates-388">Font, coordinates</a>: <a href="#User-interface-options">User interface options</a></li>
3936 <li><a href="#index-font_002c-option-389">font, option</a>: <a href="#User-interface-options">User interface options</a></li>
3937 <li><a href="#index-fontSizeTolerance_002c-option-391">fontSizeTolerance, option</a>: <a href="#User-interface-options">User interface options</a></li>
3938 <li><a href="#index-Forward-to-End_002c-Menu-Item-38">Forward to End, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3939 <li><a href="#index-Forward_002c-Menu-Item-34">Forward, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
3940 <li><a href="#index-fUCI_002c-option-217">fUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
3941 <li><a href="#index-Game-List-Tags_002c-Menu-Item-95">Game List Tags, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3942 <li><a href="#index-Game-List-Tags_002c-Menu-Item-51">Game List Tags, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
3943 <li><a href="#index-gameListTags_002c-option-335">gameListTags, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
3944 <li><a href="#index-games_002c-ICS-command-447">games, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3945 <li><a href="#index-gateway_002c-option-247">gateway, option</a>: <a href="#ICS-options">ICS options</a></li>
3946 <li><a href="#index-General-Options_002c-Menu-Item-98">General Options, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3947 <li><a href="#index-geometry_002c-option-343">geometry, option</a>: <a href="#User-interface-options">User interface options</a></li>
3948 <li><a href="#index-Get-Move-List_002c-Menu-Item-128">Get Move List, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3949 <li><a href="#index-getMoveList_002c-option-270">getMoveList, option</a>: <a href="#ICS-options">ICS options</a></li>
3950 <li><a href="#index-Help-Menu-143">Help Menu</a>: <a href="#Help-Menu">Help Menu</a></li>
3951 <li><a href="#index-help_002c-ICS-command-445">help, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3952 <li><a href="#index-Hide-Thinking_002c-Menu-Item-115">Hide Thinking, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3953 <li><a href="#index-highlight-Arrow_002c-option-381">highlight Arrow, option</a>: <a href="#User-interface-options">User interface options</a></li>
3954 <li><a href="#index-Highlight-Dragging_002c-Menu-Item-106">Highlight Dragging, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3955 <li><a href="#index-Highlight-Last-Move_002c-Menu-Item-107">Highlight Last Move, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3956 <li><a href="#index-Highlight-with-Arrow_002c-Menu-Item-108">Highlight with Arrow, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3957 <li><a href="#index-highlight_002c-option-379">highlight, option</a>: <a href="#User-interface-options">User interface options</a></li>
3958 <li><a href="#index-highlightLastMove_002c-option-380">highlightLastMove, option</a>: <a href="#User-interface-options">User interface options</a></li>
3959 <li><a href="#index-highlightMoveWithArrow_002c-option-382">highlightMoveWithArrow, option</a>: <a href="#User-interface-options">User interface options</a></li>
3960 <li><a href="#index-highlightSquareColor_002c-option-401">highlightSquareColor, option</a>: <a href="#User-interface-options">User interface options</a></li>
3961 <li><a href="#index-Hint_002c-Menu-Item-83">Hint, Menu Item</a>: <a href="#Engine-Menu">Engine Menu</a></li>
3962 <li><a href="#index-holdingsSize_002c-option-427">holdingsSize, option</a>: <a href="#Other-options">Other options</a></li>
3963 <li><a href="#index-iconic_002c-option-344">iconic, option</a>: <a href="#User-interface-options">User interface options</a></li>
3964 <li><a href="#index-ICS-442">ICS</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3965 <li><a href="#index-ICS-Alarm-Time_002c-Menu-Item-138">ICS Alarm Time, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3966 <li><a href="#index-ICS-Alarm_002c-Menu-Item-137">ICS Alarm, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3967 <li><a href="#index-ICS-Client_002c-Menu-Item-60">ICS Client, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
3968 <li><a href="#index-ICS-Input-Box_002c-Menu-Item-49">ICS Input Box, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
3969 <li><a href="#index-ICS-options-234">ICS options</a>: <a href="#ICS-options">ICS options</a></li>
3970 <li><a href="#index-ICS-Options_002c-Menu-Item-120">ICS Options, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
3971 <li><a href="#index-ICS_002c-addresses-443">ICS, addresses</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3972 <li><a href="#index-ics_002c-option-236">ics, option</a>: <a href="#ICS-options">ICS options</a></li>
3973 <li><a href="#index-icsAlarm_002c-option-272">icsAlarm, option</a>: <a href="#ICS-options">ICS options</a></li>
3974 <li><a href="#index-icsAlarmTime_002c-option-273">icsAlarmTime, option</a>: <a href="#ICS-options">ICS options</a></li>
3975 <li><a href="#index-icscomm_002c-option-249">icscomm, option</a>: <a href="#ICS-options">ICS options</a></li>
3976 <li><a href="#index-icshelper_002c-option-242">icshelper, option</a>: <a href="#ICS-options">ICS options</a></li>
3977 <li><a href="#index-icshost_002c-option-238">icshost, option</a>: <a href="#ICS-options">ICS options</a></li>
3978 <li><a href="#index-icsinput_002c-option-254">icsinput, option</a>: <a href="#ICS-options">ICS options</a></li>
3979 <li><a href="#index-icslogon_002c-option-250">icslogon, option</a>: <a href="#ICS-options">ICS options</a></li>
3980 <li><a href="#index-icsport_002c-option-240">icsport, option</a>: <a href="#ICS-options">ICS options</a></li>
3981 <li><a href="#index-inc_002c-option-161">inc, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3982 <li><a href="#index-Info-XBoard_002c-Menu-Item-144">Info XBoard, Menu Item</a>: <a href="#Help-Menu">Help Menu</a></li>
3983 <li><a href="#index-init_002c-option-338">init, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
3984 <li><a href="#index-initalMode_002c-option-423">initalMode, option</a>: <a href="#Other-options">Other options</a></li>
3985 <li><a href="#index-initString_002c-option-197">initString, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
3986 <li><a href="#index-Internet-Chess-Server-444">Internet Chess Server</a>: <a href="#Chess-Servers">Chess Servers</a></li>
3987 <li><a href="#index-internetChessServerCommPort_002c-option-248">internetChessServerCommPort, option</a>: <a href="#ICS-options">ICS options</a></li>
3988 <li><a href="#index-internetChessServerHelper_002c-option-243">internetChessServerHelper, option</a>: <a href="#ICS-options">ICS options</a></li>
3989 <li><a href="#index-internetChessServerHost_002c-option-239">internetChessServerHost, option</a>: <a href="#ICS-options">ICS options</a></li>
3990 <li><a href="#index-internetChessServerInputBox_002c-option-255">internetChessServerInputBox, option</a>: <a href="#ICS-options">ICS options</a></li>
3991 <li><a href="#index-internetChessServerLogonScript_002c-option-251">internetChessServerLogonScript, option</a>: <a href="#ICS-options">ICS options</a></li>
3992 <li><a href="#index-internetChessServerMode_002c-option-237">internetChessServerMode, option</a>: <a href="#ICS-options">ICS options</a></li>
3993 <li><a href="#index-internetChessServerPort_002c-option-241">internetChessServerPort, option</a>: <a href="#ICS-options">ICS options</a></li>
3994 <li><a href="#index-introduction-1">introduction</a>: <a href="#Top">Top</a></li>
3995 <li><a href="#index-Keys-147">Keys</a>: <a href="#Keys">Keys</a></li>
3996 <li><a href="#index-legal_002c-option-355">legal, option</a>: <a href="#User-interface-options">User interface options</a></li>
3997 <li><a href="#index-lgf_002c-option-314">lgf, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
3998 <li><a href="#index-lgi_002c-option-316">lgi, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
3999 <li><a href="#index-lightSquareColor_002c-option-399">lightSquareColor, option</a>: <a href="#User-interface-options">User interface options</a></li>
4000 <li><a href="#index-Limitations-461">Limitations</a>: <a href="#Limitations">Limitations</a></li>
4001 <li><a href="#index-Load-and-Save-options-313">Load and Save options</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4002 <li><a href="#index-Load-Game-Options_002c-Menu-Item-93">Load Game Options, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4003 <li><a href="#index-Load-Game_002c-Menu-Item-10">Load Game, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4004 <li><a href="#index-Load-Next-Game_002c-Menu-Item-149">Load Next Game, Menu Item</a>: <a href="#Keys">Keys</a></li>
4005 <li><a href="#index-Load-Next-Position_002c-Menu-Item-12">Load Next Position, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4006 <li><a href="#index-Load-Position_002c-Menu-Item-11">Load Position, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4007 <li><a href="#index-Load-Previous-Game_002c-Menu-Item-150">Load Previous Game, Menu Item</a>: <a href="#Keys">Keys</a></li>
4008 <li><a href="#index-Load-Previous-Position_002c-Menu-Item-13">Load Previous Position, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4009 <li><a href="#index-loadGameFile_002c-option-315">loadGameFile, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4010 <li><a href="#index-loadGameIndex_002c-option-317">loadGameIndex, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4011 <li><a href="#index-loadPositionFile_002c-option-325">loadPositionFile, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4012 <li><a href="#index-loadPositionIndex_002c-option-327">loadPositionIndex, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4013 <li><a href="#index-lowTimeWarning_002c-option-274">lowTimeWarning, option</a>: <a href="#ICS-options">ICS options</a></li>
4014 <li><a href="#index-lowTimeWarningColor_002c-option-402">lowTimeWarningColor, option</a>: <a href="#User-interface-options">User interface options</a></li>
4015 <li><a href="#index-lpf_002c-option-324">lpf, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4016 <li><a href="#index-lpi_002c-option-326">lpi, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4017 <li><a href="#index-Machine-Black_002c-Menu-Item-55">Machine Black, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4018 <li><a href="#index-Machine-match_002c-Menu-Item-61">Machine match, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4019 <li><a href="#index-Machine-White_002c-Menu-Item-54">Machine White, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4020 <li><a href="#index-Mail-Move_002c-Menu-Item-16">Mail Move, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4021 <li><a href="#index-Major-modes-2">Major modes</a>: <a href="#Major-modes">Major modes</a></li>
4022 <li><a href="#index-Man-XBoard_002c-Menu-Item-145">Man XBoard, Menu Item</a>: <a href="#Help-Menu">Help Menu</a></li>
4023 <li><a href="#index-Match-Game-Options_002c-Menu-Item-92">Match Game Options, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4024 <li><a href="#index-matchGames_002c-option-179">matchGames, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4025 <li><a href="#index-matchMode_002c-option-181">matchMode, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4026 <li><a href="#index-materialDraws_002c-option-416">materialDraws, option</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
4027 <li><a href="#index-Menu_002c-Action-63">Menu, Action</a>: <a href="#Action-Menu">Action Menu</a></li>
4028 <li><a href="#index-Menu_002c-Edit-19">Menu, Edit</a>: <a href="#Edit-Menu">Edit Menu</a></li>
4029 <li><a href="#index-Menu_002c-Engine-79">Menu, Engine</a>: <a href="#Engine-Menu">Engine Menu</a></li>
4030 <li><a href="#index-Menu_002c-File-6">Menu, File</a>: <a href="#File-Menu">File Menu</a></li>
4031 <li><a href="#index-Menu_002c-Help-142">Menu, Help</a>: <a href="#Help-Menu">Help Menu</a></li>
4032 <li><a href="#index-Menu_002c-Mode-52">Menu, Mode</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4033 <li><a href="#index-Menu_002c-Options-87">Menu, Options</a>: <a href="#Options-Menu">Options Menu</a></li>
4034 <li><a href="#index-Menu_002c-View-40">Menu, View</a>: <a href="#View-Menu">View Menu</a></li>
4035 <li><a href="#index-Menus-4">Menus</a>: <a href="#Menus">Menus</a></li>
4036 <li><a href="#index-mg_002c-option-178">mg, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4037 <li><a href="#index-mm_002c-option-180">mm, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4038 <li><a href="#index-Mode-Menu-53">Mode Menu</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4039 <li><a href="#index-mode_002c-option-422">mode, option</a>: <a href="#Other-options">Other options</a></li>
4040 <li><a href="#index-mono_002c-option-372">mono, option</a>: <a href="#User-interface-options">User interface options</a></li>
4041 <li><a href="#index-monoMode_002c-option-373">monoMode, option</a>: <a href="#User-interface-options">User interface options</a></li>
4042 <li><a href="#index-Move-Now_002c-Menu-Item-85">Move Now, Menu Item</a>: <a href="#Engine-Menu">Engine Menu</a></li>
4043 <li><a href="#index-Move-Sound_002c-Menu-Item-97">Move Sound, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4044 <li><a href="#index-moves_002c-option-269">moves, option</a>: <a href="#ICS-options">ICS options</a></li>
4045 <li><a href="#index-movesound_002c-option-346">movesound, option</a>: <a href="#User-interface-options">User interface options</a></li>
4046 <li><a href="#index-movesPerSession_002c-option-160">movesPerSession, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4047 <li><a href="#index-mps_002c-option-159">mps, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4048 <li><a href="#index-msLoginDelay_002c-option-253">msLoginDelay, option</a>: <a href="#ICS-options">ICS options</a></li>
4049 <li><a href="#index-nameOfDebugFile_002c-option-433">nameOfDebugFile, option</a>: <a href="#Other-options">Other options</a></li>
4050 <li><a href="#index-ncp_002c-option-420">ncp, option</a>: <a href="#Other-options">Other options</a></li>
4051 <li><a href="#index-New-Game_002c-Menu-Item-7">New Game, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4052 <li><a href="#index-New-Shuffle-Game_002c-Menu-Item-8">New Shuffle Game, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4053 <li><a href="#index-New-variant_002c-Menu-Item-9">New variant, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4054 <li><a href="#index-niceEngines_002c-option-209">niceEngines, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4055 <li><a href="#index-noChessProgram_002c-option-421">noChessProgram, option</a>: <a href="#Other-options">Other options</a></li>
4056 <li><a href="#index-noGUI_002c-option-345">noGUI, option</a>: <a href="#User-interface-options">User interface options</a></li>
4057 <li><a href="#index-observe_002c-ICS-command-456">observe, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
4058 <li><a href="#index-oldmoves_002c-ICS-command-458">oldmoves, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
4059 <li><a href="#index-oldsave_002c-option-333">oldsave, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4060 <li><a href="#index-oldSaveStyle_002c-option-334">oldSaveStyle, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4061 <li><a href="#index-One_002dClick-Moving_002c-Menu-Item-109">One-Click Moving, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4062 <li><a href="#index-oneClickMove_002c-option-268">oneClickMove, option</a>: <a href="#ICS-options">ICS options</a></li>
4063 <li><a href="#index-Options-153">Options</a>: <a href="#Options">Options</a></li>
4064 <li><a href="#index-Options-Menu-88">Options Menu</a>: <a href="#Options-Menu">Options Menu</a></li>
4065 <li><a href="#index-Options_002c-adjudication-411">Options, adjudication</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
4066 <li><a href="#index-options_002c-Chess-engine-155">options, Chess engine</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4067 <li><a href="#index-Options_002c-ICS-235">Options, ICS</a>: <a href="#ICS-options">ICS options</a></li>
4068 <li><a href="#index-Options_002c-Load-and-Save-312">Options, Load and Save</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4069 <li><a href="#index-Options_002c-miscellaneous-419">Options, miscellaneous</a>: <a href="#Other-options">Other options</a></li>
4070 <li><a href="#index-Options_002c-User-interface-341">Options, User interface</a>: <a href="#User-interface-options">User interface options</a></li>
4071 <li><a href="#index-Other-programs-471">Other programs</a>: <a href="#Other-programs">Other programs</a></li>
4072 <li><a href="#index-Paste-Game_002c-Menu-Item-23">Paste Game, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
4073 <li><a href="#index-Paste-Position_002c-Menu-Item-24">Paste Position, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
4074 <li><a href="#index-Pause_002c-Menu-Item-62">Pause, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4075 <li><a href="#index-Periodic-Updates_002c-Menu-Item-110">Periodic Updates, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4076 <li><a href="#index-pgnEventHeader_002c-option_0060-331">pgnEventHeader, option`</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4077 <li><a href="#index-pgnExtendedInfo_002c-option_0060-330">pgnExtendedInfo, option`</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4078 <li><a href="#index-pieceToSquareTable_002c-option-429">pieceToSquareTable, option</a>: <a href="#Other-options">Other options</a></li>
4079 <li><a href="#index-pixmap_002c-option-394">pixmap, option</a>: <a href="#User-interface-options">User interface options</a></li>
4080 <li><a href="#index-pixmapDirectory_002c-option-395">pixmapDirectory, option</a>: <a href="#User-interface-options">User interface options</a></li>
4081 <li><a href="#index-polyglotBook_002c-option-223">polyglotBook, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4082 <li><a href="#index-polyglotDir_002c-option-221">polyglotDir, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4083 <li><a href="#index-Ponder-Next-Move_002c-Menu-Item-111">Ponder Next Move, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4084 <li><a href="#index-ponder_002c-option-176">ponder, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4085 <li><a href="#index-ponderNextMove_002c-option-177">ponderNextMove, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4086 <li><a href="#index-Popup-Exit-Message_002c-Menu-Item-112">Popup Exit Message, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4087 <li><a href="#index-Popup-Move-Errors_002c-Menu-Item-113">Popup Move Errors, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4088 <li><a href="#index-popup_002c-option-351">popup, option</a>: <a href="#User-interface-options">User interface options</a></li>
4089 <li><a href="#index-popupExitMessage_002c-option-350">popupExitMessage, option</a>: <a href="#User-interface-options">User interface options</a></li>
4090 <li><a href="#index-popupMoveErrors_002c-option-352">popupMoveErrors, option</a>: <a href="#User-interface-options">User interface options</a></li>
4091 <li><a href="#index-pre_002c-option-275">pre, option</a>: <a href="#ICS-options">ICS options</a></li>
4092 <li><a href="#index-Premove-Black_002c-Menu-Item-134">Premove Black, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4093 <li><a href="#index-Premove-White_002c-Menu-Item-133">Premove White, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4094 <li><a href="#index-Premove_002c-Menu-Item-132">Premove, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4095 <li><a href="#index-premove_002c-option-276">premove, option</a>: <a href="#ICS-options">ICS options</a></li>
4096 <li><a href="#index-Problems-466">Problems</a>: <a href="#Problems">Problems</a></li>
4097 <li><a href="#index-queen_002c-option-353">queen, option</a>: <a href="#User-interface-options">User interface options</a></li>
4098 <li><a href="#index-Quiet-Play_002c-Menu-Item-129">Quiet Play, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4099 <li><a href="#index-quiet_002c-option-277">quiet, option</a>: <a href="#ICS-options">ICS options</a></li>
4100 <li><a href="#index-quietPlay_002c-option-278">quietPlay, option</a>: <a href="#ICS-options">ICS options</a></li>
4101 <li><a href="#index-Reload-CMail-Message_002c-Menu-Item-17">Reload CMail Message, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4102 <li><a href="#index-Reload-Same-Game_002c-Menu-Item-151">Reload Same Game, Menu Item</a>: <a href="#Keys">Keys</a></li>
4103 <li><a href="#index-Reload-Same-Position_002c-Menu-Item-152">Reload Same Position, Menu Item</a>: <a href="#Keys">Keys</a></li>
4104 <li><a href="#index-remoteShell_002c-option-436">remoteShell, option</a>: <a href="#Other-options">Other options</a></li>
4105 <li><a href="#index-remoteUser_002c-option-438">remoteUser, option</a>: <a href="#Other-options">Other options</a></li>
4106 <li><a href="#index-Reporting-bugs-465">Reporting bugs</a>: <a href="#Problems">Problems</a></li>
4107 <li><a href="#index-Reporting-problems-467">Reporting problems</a>: <a href="#Problems">Problems</a></li>
4108 <li><a href="#index-Resign_002c-Menu-Item-71">Resign, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
4109 <li><a href="#index-Retract-Move_002c-Menu-Item-86">Retract Move, Menu Item</a>: <a href="#Engine-Menu">Engine Menu</a></li>
4110 <li><a href="#index-reuse_002c-option-201">reuse, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4111 <li><a href="#index-reuse2_002c-option-203">reuse2, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4112 <li><a href="#index-reuseFirst_002c-option-202">reuseFirst, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4113 <li><a href="#index-reuseSecond_002c-option-204">reuseSecond, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4114 <li><a href="#index-Revert_002c-Menu-Item-29">Revert, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
4115 <li><a href="#index-ringBellAfterMoves_002c-option-348">ringBellAfterMoves, option</a>: <a href="#User-interface-options">User interface options</a></li>
4116 <li><a href="#index-rsh_002c-option-435">rsh, option</a>: <a href="#Other-options">Other options</a></li>
4117 <li><a href="#index-ruleMoves_002c-option-418">ruleMoves, option</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
4118 <li><a href="#index-ruser_002c-option-437">ruser, option</a>: <a href="#Other-options">Other options</a></li>
4119 <li><a href="#index-sameColorGames_002c-option-182">sameColorGames, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4120 <li><a href="#index-Save-Game_002c-Menu-Item-14">Save Game, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4121 <li><a href="#index-Save-Position_002c-Menu-Item-15">Save Position, Menu Item</a>: <a href="#File-Menu">File Menu</a></li>
4122 <li><a href="#index-Save-Settings-Now_002c-Menu-Item-140">Save Settings Now, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4123 <li><a href="#index-Save-Settings-on-Exit_002c-Menu-Item-141">Save Settings on Exit, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4124 <li><a href="#index-saveGameFile_002c-option-321">saveGameFile, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4125 <li><a href="#index-saveOutOfBookInfo_002c-option_0060-332">saveOutOfBookInfo, option`</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4126 <li><a href="#index-savePositionFile_002c-option-329">savePositionFile, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4127 <li><a href="#index-saveSettingsFile_002c-option-336">saveSettingsFile, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4128 <li><a href="#index-scp_002c-option-185">scp, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4129 <li><a href="#index-sd_002c-option-167">sd, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4130 <li><a href="#index-searchDepth_002c-option-168">searchDepth, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4131 <li><a href="#index-searchTime_002c-option-166">searchTime, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4132 <li><a href="#index-secondChessProgram_002c-option-186">secondChessProgram, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4133 <li><a href="#index-secondComputerString_002c-option-200">secondComputerString, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4134 <li><a href="#index-secondDirectory_002c-option-196">secondDirectory, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4135 <li><a href="#index-secondHasOwnBookUCI_002c-option-227">secondHasOwnBookUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4136 <li><a href="#index-secondHost_002c-option-192">secondHost, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4137 <li><a href="#index-secondInitString_002c-option-198">secondInitString, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4138 <li><a href="#index-secondIsUCI_002c-option-220">secondIsUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4139 <li><a href="#index-secondNeedsNoncompliantFEN_002c-option-213">secondNeedsNoncompliantFEN, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4140 <li><a href="#index-secondNPS_002c-option-170">secondNPS, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4141 <li><a href="#index-secondOptions_002c-option-211">secondOptions, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4142 <li><a href="#index-secondProtocolVersion_002c-option-206">secondProtocolVersion, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4143 <li><a href="#index-secondScoreAbs_002c-option-208">secondScoreAbs, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4144 <li><a href="#index-secondTimeOdds_002c-option-172">secondTimeOdds, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4145 <li><a href="#index-secondXBook_002c-option-229">secondXBook, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4146 <li><a href="#index-Seek-Graph_002c-Menu-Item-130">Seek Graph, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4147 <li><a href="#index-seekGraph_002c-option-263">seekGraph, option</a>: <a href="#ICS-options">ICS options</a></li>
4148 <li><a href="#index-set_002c-ICS-command-455">set, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
4149 <li><a href="#index-Settings_002c-Engine-216">Settings, Engine</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4150 <li><a href="#index-SettingsFile_002c-option-337">SettingsFile, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4151 <li><a href="#index-sg_002c-option-264">sg, option</a>: <a href="#ICS-options">ICS options</a></li>
4152 <li><a href="#index-sgf_002c-option-320">sgf, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4153 <li><a href="#index-sh_002c-option-191">sh, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4154 <li><a href="#index-Shortcut-keys-148">Shortcut keys</a>: <a href="#Keys">Keys</a></li>
4155 <li><a href="#index-Show-Coords_002c-Menu-Item-114">Show Coords, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4156 <li><a href="#index-Show-Engine-Output_002c-Menu-Item-43">Show Engine Output, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
4157 <li><a href="#index-Show-Evaluation-Graph_002c-Menu-Item-45">Show Evaluation Graph, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
4158 <li><a href="#index-Show-Game-List_002c-Menu-Item-46">Show Game List, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
4159 <li><a href="#index-Show-Move-History_002c-Menu-Item-44">Show Move History, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
4160 <li><a href="#index-showButtonBar_002c-option-371">showButtonBar, option</a>: <a href="#User-interface-options">User interface options</a></li>
4161 <li><a href="#index-showCoords_002c-option-361">showCoords, option</a>: <a href="#User-interface-options">User interface options</a></li>
4162 <li><a href="#index-showTargetSquares_002c-option-374">showTargetSquares, option</a>: <a href="#User-interface-options">User interface options</a></li>
4163 <li><a href="#index-showThinking_002c-option-175">showThinking, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4164 <li><a href="#index-shuffleOpenings_002c-option-214">shuffleOpenings, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4165 <li><a href="#index-size_002c-option-357">size, option</a>: <a href="#User-interface-options">User interface options</a></li>
4166 <li><a href="#index-sNoOwnBookUCI_002c-option-225">sNoOwnBookUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4167 <li><a href="#index-Sound-Options_002c-Menu-Item-96">Sound Options, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4168 <li><a href="#index-soundChallenge_002c-option-301">soundChallenge, option</a>: <a href="#ICS-options">ICS options</a></li>
4169 <li><a href="#index-soundChannel_002c-option-298">soundChannel, option</a>: <a href="#ICS-options">ICS options</a></li>
4170 <li><a href="#index-soundDirectory_002c-option-294">soundDirectory, option</a>: <a href="#ICS-options">ICS options</a></li>
4171 <li><a href="#index-soundIcsAlarm_002c-option-305">soundIcsAlarm, option</a>: <a href="#ICS-options">ICS options</a></li>
4172 <li><a href="#index-soundIcsDraw_002c-option-308">soundIcsDraw, option</a>: <a href="#ICS-options">ICS options</a></li>
4173 <li><a href="#index-soundIcsLoss_002c-option-307">soundIcsLoss, option</a>: <a href="#ICS-options">ICS options</a></li>
4174 <li><a href="#index-soundIcsUnfinished_002c-option-309">soundIcsUnfinished, option</a>: <a href="#ICS-options">ICS options</a></li>
4175 <li><a href="#index-soundIcsWin_002c-option-306">soundIcsWin, option</a>: <a href="#ICS-options">ICS options</a></li>
4176 <li><a href="#index-soundKibitz_002c-option-299">soundKibitz, option</a>: <a href="#ICS-options">ICS options</a></li>
4177 <li><a href="#index-soundMove_002c-option-304">soundMove, option</a>: <a href="#ICS-options">ICS options</a></li>
4178 <li><a href="#index-soundProgram_002c-option-292">soundProgram, option</a>: <a href="#ICS-options">ICS options</a></li>
4179 <li><a href="#index-soundRequest_002c-option-302">soundRequest, option</a>: <a href="#ICS-options">ICS options</a></li>
4180 <li><a href="#index-Sounds-293">Sounds</a>: <a href="#ICS-options">ICS options</a></li>
4181 <li><a href="#index-soundSeek_002c-option-303">soundSeek, option</a>: <a href="#ICS-options">ICS options</a></li>
4182 <li><a href="#index-soundShout_002c-option-296">soundShout, option</a>: <a href="#ICS-options">ICS options</a></li>
4183 <li><a href="#index-soundSShout_002c-option-297">soundSShout, option</a>: <a href="#ICS-options">ICS options</a></li>
4184 <li><a href="#index-soundTell_002c-option-300">soundTell, option</a>: <a href="#ICS-options">ICS options</a></li>
4185 <li><a href="#index-spf_002c-option-328">spf, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4186 <li><a href="#index-st_002c-option-165">st, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4187 <li><a href="#index-Stop-Examining_002c-Menu-Item-73">Stop Examining, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
4188 <li><a href="#index-Stop-Observing_002c-Menu-Item-72">Stop Observing, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
4189 <li><a href="#index-sUCI_002c-option-218">sUCI, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4190 <li><a href="#index-Tags_002c-Menu-Item-47">Tags, Menu Item</a>: <a href="#View-Menu">View Menu</a></li>
4191 <li><a href="#index-tc_002c-option-157">tc, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4192 <li><a href="#index-td_002c-option-318">td, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4193 <li><a href="#index-telnet_002c-option-244">telnet, option</a>: <a href="#ICS-options">ICS options</a></li>
4194 <li><a href="#index-telnetProgram_002c-option-246">telnetProgram, option</a>: <a href="#ICS-options">ICS options</a></li>
4195 <li><a href="#index-Test-Legality_002c-Menu-Item-116">Test Legality, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4196 <li><a href="#index-testClaims_002c-option-415">testClaims, option</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
4197 <li><a href="#index-testLegality_002c-option-356">testLegality, option</a>: <a href="#User-interface-options">User interface options</a></li>
4198 <li><a href="#index-thinking_002c-option-174">thinking, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4199 <li><a href="#index-Time-Control_002c-Menu-Item-89">Time Control, Menu Item</a>: <a href="#Options-Menu">Options Menu</a></li>
4200 <li><a href="#index-timeControl_002c-option-158">timeControl, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4201 <li><a href="#index-timeDelay_002c-option-319">timeDelay, option</a>: <a href="#Load-and-Save-options">Load and Save options</a></li>
4202 <li><a href="#index-timeIncrement_002c-option-162">timeIncrement, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4203 <li><a href="#index-timeOddsMode_002c-option-173">timeOddsMode, option</a>: <a href="#Chess-engine-options">Chess engine options</a></li>
4204 <li><a href="#index-title_002c-option-368">title, option</a>: <a href="#User-interface-options">User interface options</a></li>
4205 <li><a href="#index-titleInWindow_002c-option-369">titleInWindow, option</a>: <a href="#User-interface-options">User interface options</a></li>
4206 <li><a href="#index-Training_002c-Menu-Item-59">Training, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4207 <li><a href="#index-trivialDraws_002c-option-417">trivialDraws, option</a>: <a href="#Adjudication-Options">Adjudication Options</a></li>
4208 <li><a href="#index-Truncate-Game_002c-Menu-Item-31">Truncate Game, Menu Item</a>: <a href="#Edit-Menu">Edit Menu</a></li>
4209 <li><a href="#index-Two-Machines_002c-Menu-Item-56">Two Machines, Menu Item</a>: <a href="#Mode-Menu">Mode Menu</a></li>
4210 <li><a href="#index-Upload-to-Examine_002c-Menu-Item-74">Upload to Examine, Menu Item</a>: <a href="#Action-Menu">Action Menu</a></li>
4211 <li><a href="#index-usePolyglotBook_002c-option-222">usePolyglotBook, option</a>: <a href="#UCI-_002b-WB-Engine-Settings">UCI + WB Engine Settings</a></li>
4212 <li><a href="#index-User-interface-options-340">User interface options</a>: <a href="#User-interface-options">User interface options</a></li>
4213 <li><a href="#index-userName_002c-option-439">userName, option</a>: <a href="#Other-options">Other options</a></li>
4214 <li><a href="#index-useTelnet_002c-option-245">useTelnet, option</a>: <a href="#ICS-options">ICS options</a></li>
4215 <li><a href="#index-variant_002c-option-424">variant, option</a>: <a href="#Other-options">Other options</a></li>
4216 <li><a href="#index-variations_002c-option-311">variations, option</a>: <a href="#ICS-options">ICS options</a></li>
4217 <li><a href="#index-vars_002c-ICS-command-454">vars, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
4218 <li><a href="#index-View-Menu-41">View Menu</a>: <a href="#View-Menu">View Menu</a></li>
4219 <li><a href="#index-whitePieceColor_002c-option-397">whitePieceColor, option</a>: <a href="#User-interface-options">User interface options</a></li>
4220 <li><a href="#index-who_002c-ICS-command-446">who, ICS command</a>: <a href="#Chess-Servers">Chess Servers</a></li>
4221 <li><a href="#index-xflash_002c-option-378">xflash, option</a>: <a href="#User-interface-options">User interface options</a></li>
4223 <div class="contents">
4224 <h2>Table of Contents</h2>
4226 <li><a name="toc_Top" href="#Top">Introduction</a>
4227 <li><a name="toc_Major-modes" href="#Major-modes">1 Major modes</a>
4228 <li><a name="toc_Basic-operation" href="#Basic-operation">2 Basic operation</a>
4229 <li><a name="toc_Menus" href="#Menus">3 Menus, buttons, and keys</a>
4231 <li><a href="#File-Menu">3.1 File Menu</a>
4232 <li><a href="#Edit-Menu">3.2 Edit Menu</a>
4233 <li><a href="#View-Menu">3.3 View Menu</a>
4234 <li><a href="#Mode-Menu">3.4 Mode Menu</a>
4235 <li><a href="#Action-Menu">3.5 Action Menu</a>
4236 <li><a href="#Engine-Menu">3.6 Engine Menu</a>
4237 <li><a href="#Options-Menu">3.7 Options Menu</a>
4238 <li><a href="#Help-Menu">3.8 Help Menu</a>
4239 <li><a href="#Keys">3.9 Other Shortcut Keys</a>
4241 <li><a name="toc_Options" href="#Options">4 Options</a>
4243 <li><a href="#Chess-engine-options">4.1 Chess Engine Options</a>
4244 <li><a href="#UCI-_002b-WB-Engine-Settings">4.2 UCI + WB Engine Settings</a>
4245 <li><a href="#ICS-options">4.3 ICS options</a>
4246 <li><a href="#Load-and-Save-options">4.4 Load and Save options</a>
4247 <li><a href="#User-interface-options">4.5 User interface options</a>
4248 <li><a href="#Adjudication-Options">4.6 Adjudication Options</a>
4249 <li><a href="#Other-options">4.7 Other options</a>
4251 <li><a name="toc_Chess-Servers" href="#Chess-Servers">5 Chess Servers</a>
4252 <li><a name="toc_Firewalls" href="#Firewalls">6 Firewalls</a>
4253 <li><a name="toc_Environment" href="#Environment">7 Environment variables</a>
4254 <li><a name="toc_Limitations" href="#Limitations">8 Limitations and known bugs</a>
4255 <li><a name="toc_Problems" href="#Problems">9 Reporting problems</a>
4256 <li><a name="toc_Contributors" href="#Contributors">10 Authors and contributors</a>
4257 <li><a name="toc_CMail" href="#CMail">11 CMail</a>
4259 <li><a href="#CMail-options">11.1 CMail options</a>
4260 <li><a href="#CMail-game">11.2 Starting a CMail Game</a>
4261 <li><a href="#CMail-answer">11.3 Answering a Move</a>
4262 <li><a href="#CMail-multi">11.4 Multi-Game Messages</a>
4263 <li><a href="#CMail-completion">11.5 Completing a Game</a>
4264 <li><a href="#CMail-trouble">11.6 Known CMail Problems</a>
4266 <li><a name="toc_Other-programs" href="#Other-programs">12 Other programs you can use with XBoard</a>
4268 <li><a href="#GNU-Chess">12.1 GNU Chess</a>
4269 <li><a href="#Fairy_002dMax">12.2 Fairy-Max</a>
4270 <li><a href="#HoiChess">12.3 HoiChess</a>
4271 <li><a href="#Crafty">12.4 Crafty</a>
4272 <li><a href="#zic2xpm">12.5 zic2xpm</a>
4274 <li><a name="toc_Copyright" href="#Copyright">Copyright</a>
4275 <li><a name="toc_Copying" href="#Copying">GNU GENERAL PUBLIC LICENSE</a>
4276 <li><a name="toc_Index" href="#Index">Index</a>
projects / xboard.git / blob