3 <title>Losers Chess</title>
4 <link rel=StyleSheet href="./moves.css" type="text/css">
5 <script type="text/javascript" src="spartan.js"></script>
9 <table cellpadding="20"><tr><td>
12 <h3>Initial setup</h3>
20 c1, c8, f1, f8: Bishop
22 b1, b8, g1, g8: Knight
28 <h3>Moves at a Glance</h3>
30 <p>Click on a piece below to see its moves</p>
32 <table class="board"><tr><td class="h" id="0x9">
34 </td><td class="n" id="1x9" onmouseDown="down_click(1,-9)" onmouseUp="up_click()">
35 <img src="sym/BlackRook.png">
36 </td><td class="n" id="2x9">
38 </td><td class="n" id="3x9">
40 </td><td class="n" id="4x9">
42 </td><td class="n" id="5x9" onmouseDown="down_click(5,9)" onmouseUp="up_click()">
43 <img src="sym/BlackKing.png">
44 </td><td class="n" id="6x9">
46 </td><td class="n" id="7x9">
48 </td><td class="n" id="8x9" onmouseDown="down_click(8,9)" onmouseUp="up_click()">
49 <img src="sym/BlackRook.png">
50 </td><td class="h" id="9x9">
53 <img src="sym/yellow.png">
54 </td><td class="w" rowspan="2" valign="top">
55 <p>Sliding capture or non-capture,<br>can be blocked on any square along the ray</p>
56 </td></tr><tr><td class="h" id="0x8">
58 </td><td class="n" id="1x8">
60 </td><td class="n" id="2x8">
62 </td><td class="n" id="3x8">
64 </td><td class="n" id="4x8">
66 </td><td class="n" id="5x8">
68 </td><td class="n" id="6x8">
70 </td><td class="n" id="7x8">
72 </td><td class="n" id="8x8">
74 </td><td class="h" id="9x8">
76 </td></tr><tr><td class="h" id="0x7">
78 </td><td class="n" id="1x7">
80 </td><td class="n" id="2x7">
82 </td><td class="n" id="3x7">
84 </td><td class="n" id="4x7">
86 </td><td class="n" id="5x7">
88 </td><td class="n" id="6x7">
90 </td><td class="n" id="7x7">
92 </td><td class="n" id="8x7">
94 </td><td class="h" id="9x7">
97 <img src="sym/orange.png">
99 Unblockable leap (capture or non-capture)
100 </td></tr><tr><td class="h" id="0x6">
102 </td><td class="n" id="1x6">
104 </td><td class="n" id="2x6">
106 </td><td class="n" id="3x6">
108 </td><td class="n" id="4x6">
110 </td><td class="n" id="5x6">
112 </td><td class="n" id="6x6">
114 </td><td class="n" id="7x6">
116 </td><td class="n" id="8x6">
118 </td><td class="h" id="9x6">
121 <img src="sym/green.png">
124 </td></tr><tr><td class="h" id="0x5">
126 </td><td class="n" id="1x5">
128 </td><td class="n" id="2x5">
130 </td><td class="n" id="3x5">
132 </td><td class="n" id="4x5">
134 </td><td class="n" id="5x5">
136 </td><td class="n" id="6x5">
138 </td><td class="n" id="7x5">
140 </td><td class="n" id="8x5">
142 </td><td class="h" id="9x5">
145 <img src="sym/red.png">
148 </td></tr><tr><td class="h" id="0x4">
150 </td><td class="n" id="1x4">
152 </td><td class="n" id="2x4">
154 </td><td class="n" id="3x4">
156 </td><td class="n" id="4x4">
158 </td><td class="n" id="5x4">
160 </td><td class="n" id="6x4">
162 </td><td class="n" id="7x4">
164 </td><td class="n" id="8x4">
166 </td><td class="h" id="9x4">
168 </td></tr><tr><td class="h" id="0x3">
170 </td><td class="n" id="1x3" onmouseDown="down_click(1,3)" onmouseUp="up_click()">
171 <img src="sym/BlackPawn.png">
172 </td><td class="n" id="2x3" onmouseDown="down_click(2,3)" onmouseUp="up_click()">
173 <img src="sym/WhitePawn.png">
174 </td><td class="n" id="3x3" onmouseDown="down_click(3,3)" onmouseUp="up_click()">
175 <img src="sym/WhiteRook.png">
176 </td><td class="n" id="4x3" onmouseDown="down_click(4,3)" onmouseUp="up_click()">
177 <img src="sym/WhiteKnight.png">
178 </td><td class="n" id="5x3" onmouseDown="down_click(5,3)" onmouseUp="up_click()">
179 <img src="sym/WhiteQueen.png">
180 </td><td class="n" id="6x3" onmouseDown="down_click(6,3)" onmouseUp="up_click()">
181 <img src="sym/WhiteBishop.png">
182 </td><td class="n" id="7x3" onmouseDown="down_click(7,3)" onmouseUp="up_click()">
183 <img src="sym/WhiteKing.png">
184 </td><td class="n" id="8x3">
186 </td><td class="h" id="9x3">
188 </td></tr><tr><td class="h" id="0x2">
190 </td><td class="n" id="1x2">
192 </td><td class="n" id="2x2">
194 </td><td class="n" id="3x2">
196 </td><td class="n" id="4x2">
198 </td><td class="n" id="5x2">
200 </td><td class="n" id="6x2">
202 </td><td class="n" id="7x2">
204 </td><td class="n" id="8x2">
206 </td><td class="h" id="9x2">
208 </td></tr><tr><td class="h" id="0x1">
210 </td><td class="n" id="1x1">
212 </td><td class="n" id="2x1" onmouseDown="down_click(-2,1)" onmouseUp="up_click()">
213 <img src="sym/WhitePawn.png">
214 </td><td class="n" id="3x1">
216 </td><td class="n" id="4x1">
218 </td><td class="n" id="5x1">
220 </td><td class="n" id="6x1">
222 </td><td class="n" id="7x1">
224 </td><td class="n" id="8x1">
226 </td><td class="h" id="9x1">
228 </td></tr><tr><td class="h" id="0x0">
230 </td><td class="n" id="1x0">
232 </td><td class="n" id="2x0">
234 </td><td class="n" id="3x0">
236 </td><td class="n" id="4x0">
238 </td><td class="n" id="5x0">
240 </td><td class="n" id="6x0">
242 </td><td class="n" id="7x0">
244 </td><td class="n" id="8x0">
246 </td><td class="h" id="9x0">
250 <p id="piece" height="20">:<br>:<br>:<br>:</p>
252 <table cellpadding="5" border="1"><tr><td>
259 Moves (<a href="Betza.html">Betza notation</a>)
271 Can castle with Rook, moving 2 steps towards it
321 Promotes to Q, R, B, or N on reaching last rank
323 <h3>Pawn peculiarities</h3>
325 <li>Pawns capture differently from how they move (straight move, diagonal capture).</li>
326 <li>Pawns can move two squares straight ahead from their initial position, provided they are not blocked.</li>
327 <li>On the move immediately after such a double push, they can be captured en passant by another Pawn,
328 as if they had only moved 1 square ahead.</li>
329 <li>Pawns promote to another (non-royal) piece of choice when they reach last rank.</li>
333 A King that has not moved before can move two squares in the direction of a Rook that has not moved before,
334 in which case that Rook is moved to the square the King skipped over.
335 This is only allowed if all squares between King and Rook are empty,
336 when the King is not in check on the square it came from,
337 and would not be in check on any of the squares it skipped over.
339 <h3>General rules</h3>
341 <li>Capture is mandatory; if ay capture is possible, you cannot play a non-capture.</li>
342 <li>It is not allowed to expose your King to check.</li>
343 <li>The game is won by being checkmated or being left with a bare King.</li>
344 <li>Stalemate (no legal moves, but not in check) is a draw.</li>
346 <h3>Differences with FIDE</h3>
348 Capture is mandatory.
349 You win by being checkmated in stead of checkmating, or by having a bare King.
351 <h3>Strategy issues</h3>
353 Initially having more and stronger pieces makes you more likely to win.
356 When the opponent has only King and Pawns left, blocking one of his Pawns (e.g. with Knight or Bishop),
357 and then carefully refraining from attacking it while using your powerful pieces to shephard his King
358 towards your own Pawns, and then finally sacrificing your mobile material to it,
359 is a good way to win.