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9
10   <h1>Crazyhouse</h1>
11
12   <table cellpadding="20">
13     <tr>
14       <td><img src="Crazy.png"></td>
15
16       <td>
17         <h3>Initial setup</h3>
18
19         <p>e1, e8: King<br>
20         d1, d8: Queen<br>
21         a1, a8, h1, h8: Rook<br>
22         c1, c8, f1, f8: Bishop<br>
23         b1, b8, g1, g8: Knight<br>
24         a2-h2, a7-h7: Pawns</p>
25       </td>
26     </tr>
27   </table>
28
29   <h3>Moves at a Glance</h3>
30
31   <p>Click on a piece below to see its moves</p>
32
33   <table class="board">
34     <tr>
35       <td class="h" id="sq0x9"></td>
36
37       <td class="n" id="sq1x9" onmousedown="down_click(1,-9)"
38       onmouseup="up_click()"><img src="sym/BlackRook.png"></td>
39
40       <td class="n" id="sq2x9"></td>
41
42       <td class="n" id="sq3x9"></td>
43
44       <td class="n" id="sq4x9"></td>
45
46       <td class="n" id="sq5x9" onmousedown="down_click(5,9)"
47       onmouseup="up_click()"><img src="sym/BlackKing.png"></td>
48
49       <td class="n" id="sq6x9"></td>
50
51       <td class="n" id="sq7x9"></td>
52
53       <td class="n" id="sq8x9" onmousedown="down_click(8,9)"
54       onmouseup="up_click()"><img src="sym/BlackRook.png"></td>
55
56       <td class="h" id="sq9x9"></td>
57
58       <td class="h"><img src="sym/yellow.png"></td>
59
60       <td class="w" rowspan="2" valign="top">
61         <p>Sliding capture or non-capture,<br>
62         can be blocked on any square along the ray</p>
63       </td>
64     </tr>
65
66     <tr>
67       <td class="h" id="sq0x8"></td>
68
69       <td class="n" id="sq1x8"></td>
70
71       <td class="n" id="sq2x8"></td>
72
73       <td class="n" id="sq3x8"></td>
74
75       <td class="n" id="sq4x8"></td>
76
77       <td class="n" id="sq5x8"></td>
78
79       <td class="n" id="sq6x8"></td>
80
81       <td class="n" id="sq7x8"></td>
82
83       <td class="n" id="sq8x8"></td>
84
85       <td class="h" id="sq9x8"></td>
86     </tr>
87
88     <tr>
89       <td class="h" id="sq0x7"></td>
90
91       <td class="n" id="sq1x7"></td>
92
93       <td class="n" id="sq2x7"></td>
94
95       <td class="n" id="sq3x7"></td>
96
97       <td class="n" id="sq4x7"></td>
98
99       <td class="n" id="sq5x7"></td>
100
101       <td class="n" id="sq6x7"></td>
102
103       <td class="n" id="sq7x7"></td>
104
105       <td class="n" id="sq8x7"></td>
106
107       <td class="h" id="sq9x7"></td>
108
109       <td class="h"><img src="sym/orange.png"></td>
110
111       <td class="w">Unblockable leap (capture or non-capture)</td>
112     </tr>
113
114     <tr>
115       <td class="h" id="sq0x6"></td>
116
117       <td class="n" id="sq1x6"></td>
118
119       <td class="n" id="sq2x6"></td>
120
121       <td class="n" id="sq3x6"></td>
122
123       <td class="n" id="sq4x6"></td>
124
125       <td class="n" id="sq5x6"></td>
126
127       <td class="n" id="sq6x6"></td>
128
129       <td class="n" id="sq7x6"></td>
130
131       <td class="n" id="sq8x6"></td>
132
133       <td class="h" id="sq9x6"></td>
134
135       <td class="h"><img src="sym/green.png"></td>
136
137       <td class="w">Non-capture only</td>
138     </tr>
139
140     <tr>
141       <td class="h" id="sq0x5"></td>
142
143       <td class="n" id="sq1x5"></td>
144
145       <td class="n" id="sq2x5"></td>
146
147       <td class="n" id="sq3x5"></td>
148
149       <td class="n" id="sq4x5"></td>
150
151       <td class="n" id="sq5x5"></td>
152
153       <td class="n" id="sq6x5"></td>
154
155       <td class="n" id="sq7x5"></td>
156
157       <td class="n" id="sq8x5"></td>
158
159       <td class="h" id="sq9x5"></td>
160
161       <td class="h"><img src="sym/red.png"></td>
162
163       <td class="w">Capture only</td>
164     </tr>
165
166     <tr>
167       <td class="h" id="sq0x4"></td>
168
169       <td class="n" id="sq1x4"></td>
170
171       <td class="n" id="sq2x4"></td>
172
173       <td class="n" id="sq3x4"></td>
174
175       <td class="n" id="sq4x4"></td>
176
177       <td class="n" id="sq5x4"></td>
178
179       <td class="n" id="sq6x4"></td>
180
181       <td class="n" id="sq7x4"></td>
182
183       <td class="n" id="sq8x4"></td>
184
185       <td class="h" id="sq9x4"></td>
186     </tr>
187
188     <tr>
189       <td class="h" id="sq0x3"></td>
190
191       <td class="n" id="sq1x3" onmousedown="down_click(1,3)"
192       onmouseup="up_click()"><img src="sym/BlackPawn.png"></td>
193
194       <td class="n" id="sq2x3" onmousedown="down_click(2,3)"
195       onmouseup="up_click()"><img src="sym/WhitePawn.png"></td>
196
197       <td class="n" id="sq3x3" onmousedown="down_click(3,3)"
198       onmouseup="up_click()"><img src="sym/WhiteRook.png"></td>
199
200       <td class="n" id="sq4x3" onmousedown="down_click(4,3)"
201       onmouseup="up_click()"><img src="sym/WhiteKnight.png"></td>
202
203       <td class="n" id="sq5x3" onmousedown="down_click(5,3)"
204       onmouseup="up_click()"><img src="sym/WhiteQueen.png"></td>
205
206       <td class="n" id="sq6x3" onmousedown="down_click(6,3)"
207       onmouseup="up_click()"><img src="sym/WhiteBishop.png"></td>
208
209       <td class="n" id="sq7x3" onmousedown="down_click(7,3)"
210       onmouseup="up_click()"><img src="sym/WhiteKing.png"></td>
211
212       <td class="n" id="sq8x3"></td>
213
214       <td class="h" id="sq9x3"></td>
215     </tr>
216
217     <tr>
218       <td class="h" id="sq0x2"></td>
219
220       <td class="n" id="sq1x2"></td>
221
222       <td class="n" id="sq2x2"></td>
223
224       <td class="n" id="sq3x2"></td>
225
226       <td class="n" id="sq4x2"></td>
227
228       <td class="n" id="sq5x2"></td>
229
230       <td class="n" id="sq6x2"></td>
231
232       <td class="n" id="sq7x2"></td>
233
234       <td class="n" id="sq8x2"></td>
235
236       <td class="h" id="sq9x2"></td>
237     </tr>
238
239     <tr>
240       <td class="h" id="sq0x1"></td>
241
242       <td class="n" id="sq1x1"></td>
243
244       <td class="n" id="sq2x1" onmousedown="down_click(-2,1)"
245       onmouseup="up_click()"><img src="sym/WhitePawn.png"></td>
246
247       <td class="n" id="sq3x1"></td>
248
249       <td class="n" id="sq4x1"></td>
250
251       <td class="n" id="sq5x1"></td>
252
253       <td class="n" id="sq6x1"></td>
254
255       <td class="n" id="sq7x1"></td>
256
257       <td class="n" id="sq8x1"></td>
258
259       <td class="h" id="sq9x1"></td>
260     </tr>
261
262     <tr>
263       <td class="h" id="sq0x0"></td>
264
265       <td class="n" id="sq1x0"></td>
266
267       <td class="n" id="sq2x0"></td>
268
269       <td class="n" id="sq3x0"></td>
270
271       <td class="n" id="sq4x0"></td>
272
273       <td class="n" id="sq5x0"></td>
274
275       <td class="n" id="sq6x0"></td>
276
277       <td class="n" id="sq7x0"></td>
278
279       <td class="n" id="sq8x0"></td>
280
281       <td class="h" id="sq9x0"></td>
282     </tr>
283   </table>
284
285   <p id="piece" height="20">:<br>
286   :<br>
287   :<br>
288   :</p>
289
290   <table cellpadding="5" border="1">
291     <tr>
292       <td>Piece</td>
293
294       <td>ID</td>
295
296       <td>value</td>
297
298       <td>Moves (<a href="Betza.html">Betza notation</a>)</td>
299
300       <td>Remarks</td>
301     </tr>
302
303     <tr>
304       <td>King</td>
305
306       <td>K</td>
307
308       <td>-</td>
309
310       <td>K</td>
311
312       <td>Can castle with Rook, moving 2 steps towards it</td>
313     </tr>
314
315     <tr>
316       <td>Queen</td>
317
318       <td>Q</td>
319
320       <td>9.5</td>
321
322       <td>RB or Q</td>
323
324       <td></td>
325     </tr>
326
327     <tr>
328       <td>Rook</td>
329
330       <td>R</td>
331
332       <td>5</td>
333
334       <td>R</td>
335
336       <td></td>
337     </tr>
338
339     <tr>
340       <td>Bishop</td>
341
342       <td>B</td>
343
344       <td>3.25</td>
345
346       <td>B</td>
347
348       <td>Color-bound</td>
349     </tr>
350
351     <tr>
352       <td>Knight</td>
353
354       <td>N</td>
355
356       <td>3.25</td>
357
358       <td>N</td>
359
360       <td></td>
361     </tr>
362
363     <tr>
364       <td>Pawn</td>
365
366       <td>P</td>
367
368       <td>1</td>
369
370       <td>mfWcfF</td>
371
372       <td>Promotes to Q, R, B, or N on reaching last rank</td>
373     </tr>
374   </table>
375
376   <h3>Pawn peculiarities</h3>
377
378   <ul>
379     <li>Pawns capture differently from how they move (straight
380     move, diagonal capture).</li>
381
382     <li>Pawns can move two squares straight ahead from their
383     initial position, provided they are not blocked.</li>
384
385     <li>On the move immediately after such a double push, they can
386     be captured en passant by another Pawn, as if they had only
387     moved 1 square ahead.</li>
388
389     <li>Pawns promote to another (non-royal) piece of choice when
390     they reach last rank.</li>
391   </ul>
392
393   <h3>Castling</h3>
394
395   <p>A King that has not moved before can move two squares in the
396   direction of a Rook that has not moved before, in which case that
397   Rook is moved to the square the King skipped over. This is only
398   allowed if all squares between King and Rook are empty, when the
399   King is not in check on the square it came from, and would not be
400   in check on any of the squares it skipped over.</p>
401
402   <h3>General rules</h3>
403
404   <ul>
405     <li>It is not allowed to expose your King to check.</li>
406
407     <li>The game is won by checkmating the opponent's King.</li>
408
409     <li>Stalemate (no legal moves, but not in check) is a
410     draw.</li>
411
412     <li><b>Pieces captured change color, and are kept in hand by
413     the side who captured them. In stead of a normal move, such
414     pieces can be dropped at any later time.</b></li>
415
416     <li><b>Pawns can not be dropped on first or last rank.</b></li>
417
418     <li><b>Pieces obtained by promotion revert to Pawns on
419     capture.</b></li>
420   </ul>
421
422   <h3>XBoard interface issues</h3>
423
424   <p>Pieces obtained by promotions are indicated by slightly
425   modified versions of the conventional piece symbols. (E.g. the
426   Rook has a pointy roof, the Knight a blind-fold, etc.) If you
427   don't want that, start XBoard with the option
428   <b>-disguisePromoted true</b>. You can drop pieces by dragging
429   them onto the board from the holdings displayed beside the
430   board.</p>
431
432   <h3>Differences with FIDE</h3>
433
434   <p>Captured pieces can later be dropped to augment the army of
435   their capturer.</p>
436
437   <h3>Strategy issues</h3>
438
439   <p>Because pieces are dropped back, there will not be a
440   traditional end-game. Trading material does not constitute
441   progress towards winning, even when you are ahead.</p>
442
443   <p>Because pieces obtained through promotion revert to Pawns on
444   capture, they are really different piece types from the
445   primordial pieces that move the same. They are in fact more
446   valuable: it is much better to lose a Queen that gives the
447   opponent a Pawn in hand, than to lose a Queen that gives him a
448   Queen in hand.</p>
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