3 <title>Great Shatranj</title>
4 <link rel=StyleSheet href="./moves.css" type="text/css">
5 <script type="text/javascript" src="spartan.js"></script>
8 <h1>Great Shatranj</h1>
9 <table cellpadding="20"><tr><td>
11 <p><i>Captured pieces will be displayed beside the board for promotion choice</i></p>
13 <h3>Initial setup</h3>
21 g1, g8: High Priestess
23 a1, a8, j1, j8: Dababba
25 c1, c8, h1, h8: Elephant
27 b1, b8, i1, i8: Knight
29 a1, a8, j1, j8: War Machine
35 <h3>Moves at a Glance</h3>
37 <p>Click on a piece below to see its moves</p>
39 <table class="board"><tr><td class="n" id="0x9">
41 </td><td class="n" id="1x9">
43 </td><td class="n" id="2x9">
45 </td><td class="n" id="3x9">
47 </td><td class="n" id="4x9">
49 </td><td class="n" id="5x9">
51 </td><td class="n" id="6x9">
53 </td><td class="n" id="7x9">
55 </td><td class="n" id="8x9">
57 </td><td class="n" id="9x9">
60 <img src="sym/yellow.png">
61 </td><td class="w" rowspan="2" valign="top">
62 <p>Sliding capture or non-capture,<br>can be blocked on any square along the ray</p>
63 </td></tr><tr><td class="n" id="0x8">
65 </td><td class="n" id="1x8">
67 </td><td class="n" id="2x8">
69 </td><td class="n" id="3x8">
71 </td><td class="n" id="4x8">
73 </td><td class="n" id="5x8">
75 </td><td class="n" id="6x8">
77 </td><td class="n" id="7x8">
79 </td><td class="n" id="8x8">
81 </td><td class="n" id="9x8">
85 </td></tr><tr><td class="n" id="0x7">
87 </td><td class="n" id="1x7">
89 </td><td class="n" id="2x7">
91 </td><td class="n" id="3x7">
93 </td><td class="n" id="4x7">
95 </td><td class="n" id="5x7">
97 </td><td class="n" id="6x7">
99 </td><td class="n" id="7x7">
101 </td><td class="n" id="8x7">
103 </td><td class="n" id="9x7">
106 <img src="sym/orange.png">
108 Direct leap (capture or non-capture)
109 </td></tr><tr><td class="n" id="0x6">
111 </td><td class="n" id="1x6">
113 </td><td class="n" id="2x6">
115 </td><td class="n" id="3x6" onmouseDown="down_click(-3,6)" onmouseUp="up_click()">
116 <img src="sym/WhiteElephant.png">
117 </td><td class="n" id="4x6">
119 </td><td class="n" id="5x6">
121 </td><td class="n" id="6x6" onmouseDown="down_click(-6,6)" onmouseUp="up_click()">
122 <img src="sym/WhiteCrownedRook.png">
123 </td><td class="n" id="7x6" onmouseDown="down_click(-7,6)" onmouseUp="up_click()">
124 <img src="sym/WhiteCommoner.png">
125 </td><td class="n" id="8x6">
127 </td><td class="n" id="9x6">
130 <img src="sym/green.png">
133 </td></tr><tr><td class="n" id="0x5">
135 </td><td class="n" id="1x5">
137 </td><td class="n" id="2x5">
139 </td><td class="n" id="3x5" onmouseDown="down_click(3,5)" onmouseUp="up_click()">
140 <img src="sym/WhitePrincess.png">
141 </td><td class="n" id="4x5">
143 </td><td class="n" id="5x5">
145 </td><td class="n" id="6x5">
147 </td><td class="n" id="7x5">
149 </td><td class="n" id="8x5">
151 </td><td class="n" id="9x5">
154 <img src="sym/red.png">
157 </td></tr><tr><td class="n" id="0x4">
159 </td><td class="n" id="1x4">
161 </td><td class="n" id="2x4">
163 </td><td class="n" id="3x4" onmouseDown="down_click(3,4)" onmouseUp="up_click()">
164 <img src="sym/WhiteCrownedBishop.png">
165 </td><td class="n" id="4x4" onmouseDown="down_click(4,4)" onmouseUp="up_click()">
166 <img src="sym/WhiteChancellor.png">
167 </td><td class="n" id="5x4">
169 </td><td class="n" id="6x4">
171 </td><td class="n" id="7x4">
173 </td><td class="n" id="8x4">
175 </td><td class="n" id="9x4">
177 </td></tr><tr><td class="n" id="0x3">
179 </td><td class="n" id="1x3">
181 </td><td class="n" id="2x3" onmouseDown="down_click(2,3)" onmouseUp="up_click()">
182 <img src="sym/WhitePawn.png">
183 </td><td class="n" id="3x3">
185 </td><td class="n" id="4x3" onmouseDown="down_click(4,3)" onmouseUp="up_click()">
186 <img src="sym/WhiteKnight.png">
187 </td><td class="n" id="5x3">
189 </td><td class="n" id="6x3">
191 </td><td class="n" id="7x3" onmouseDown="down_click(7,3)" onmouseUp="up_click()">
192 <img src="sym/WhiteKing.png">
193 </td><td class="n" id="8x3">
195 </td><td class="n" id="9x3">
197 </td></tr><tr><td class="n" id="0x2">
199 </td><td class="n" id="1x2">
201 </td><td class="n" id="2x2">
203 </td><td class="n" id="3x2">
205 </td><td class="n" id="4x2">
207 </td><td class="n" id="5x2">
209 </td><td class="n" id="6x2">
211 </td><td class="n" id="7x2">
213 </td><td class="n" id="8x2">
215 </td><td class="n" id="9x2">
217 </td></tr><tr><td class="n" id="0x1">
219 </td><td class="n" id="1x1">
221 </td><td class="n" id="2x1">
223 </td><td class="n" id="3x1">
225 </td><td class="n" id="4x1">
227 </td><td class="n" id="5x1">
229 </td><td class="n" id="6x1">
231 </td><td class="n" id="7x1">
233 </td><td class="n" id="8x1">
235 </td><td class="n" id="9x1">
237 </td></tr><tr><td class="n" id="0x0">
239 </td><td class="n" id="1x0">
241 </td><td class="n" id="2x0">
243 </td><td class="n" id="3x0">
245 </td><td class="n" id="4x0">
247 </td><td class="n" id="5x0">
249 </td><td class="n" id="6x0">
251 </td><td class="n" id="7x0">
253 </td><td class="n" id="8x0">
255 </td><td class="n" id="9x0">
259 <p id="piece" height="20">:<br>:<br>:<br>:</p>
261 <table cellpadding="5" border="1"><tr><td>
268 Moves (<a href="Betza.html">Betza notation</a>)
350 Promotes to any other piece that was captured, or to Soldier
351 </td></tr><tr><td colspan="5">
352 <b>Only available through promotion</b>
364 <h3>Pawn peculiarities</h3>
366 <li>Pawns capture differently from how they move (straight move, diagonal capture).</li>
367 <li>There is no initial double-push, and thus no en-passant capture.</li>
368 <li>Pawns promote to a piece chosen from the set of captured pieces, or to Soldier when they reach last rank.
369 The chosen piece is then removed from this set.</li>
371 <h3>General rules</h3>
373 <li>It is not allowed to expose your King to check.</li>
374 <li>The game is won by checkmating the opponent's King.</li>
375 <li>Stalemate (no legal moves, but not in check) is a draw.</li>
376 <li>If your opponent only has a King at the beginning of your turn, and your king is not yet bare, you win.
377 This means that after you capture the last piece, the opponent gets one equalizing turn to recapture yours,
378 in which case it would be a draw.</li>
380 <h3>XBoard interface issues</h3>
382 When a Pawn can be promoted, XBoard first advances it as a Pawn to the promotion square.
383 Then it waits for you to complete the move entry by clicking on the piece in the holdings beside the board that you want to promote to.
384 Initially there are a number of Soldiers available in the holdings,
385 for when you should promote before any of your pieces is captured.
387 <h3>Differences with FIDE</h3>
389 There are no sliders such as Rook, Bishop or Queen in this game:
390 their distant moves have all been replaced by a single two-square jumping move.
391 In addition it is more related to Capablanca Chess than to FIDE,
392 featuring compounds of Knight and the pieces substituting for Rook and Bishop,
393 and the wider board to accomodate them.
394 There is no double-push on the Pawns (and thus no e.p. capture),
395 and promotion only allows you to regain back a piece that you lost before,
396 or one of the stocked Soldier pieces that do not occur in the initial setup.
398 <h3>Strategy issues</h3>
400 Elephants are confined to squares of a single color.
401 Having Elephants on both colors compensates this weakness, and is worth an extra 0.5 on top of their added value.
404 As the three strongest pieces (General, Minister and High Priestess) are nearly equal in value, under-promotion is very common.