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1d184b4c | 1 | p.boxed |
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2 | | The capture of an enemy piece produces a new "checkered" piece belonging |
3 | | to both players. | |
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4 | |
5 | figure.showPieces.center-align | |
6 | img(src="/images/tmp_checkered/cp.png") | |
7 | img(src="/images/tmp_checkered/cr.png") | |
8 | img(src="/images/tmp_checkered/cn.png") | |
9 | img(src="/images/tmp_checkered/cb.png") | |
10 | img(src="/images/tmp_checkered/cq.png") | |
11 | img(src="/images/tmp_checkered/no_ck.png") | |
12 | figcaption Checkered pieces, born after captures. | |
13 | ||
14 | h3 Specifications | |
15 | ||
16 | ul | |
17 | li Chessboard: standard. | |
18 | li Material: additional checkered pieces. | |
19 | li Non-capturing moves: standard; see below. | |
20 | li Special moves: standard; see below. | |
21 | li Captures: standard; see below. | |
22 | li End of game: standard. | |
23 | ||
24 | p The game potentially evolves in two stages. | |
25 | ||
26 | h2.stageDelimiter Stage 1 | |
27 | ||
28 | h3 Basics | |
29 | ||
30 | ol | |
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31 | li |
32 | | Each capture produces a new piece, taking on nature of | |
33 | | the capturing or captured one. | |
34 | li | |
35 | | The new piece arising from a capture has a new color: | |
36 | | "checkered", as illustrated above. | |
37 | li | |
38 | | All checkered pieces belong to the player in turn and can | |
39 | | capture the opponents pieces. | |
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40 | |
41 | span Remarks: | |
42 | ul | |
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43 | li. |
44 | A non-capturing checkered move cannot be "undone" right after since | |
45 | this would repeat the same position. | |
2316f8b8 | 46 | li Checkered pieces cannot be captured. |
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47 | |
48 | figure.diagram-container | |
49 | .diagram | |
50 | | fen:2kr4/pp6/2p5/4ss1r/1P2ns1P/2Np4/P1P1P1BP/R2o1RK1: | |
51 | figcaption. | |
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52 | Black plays Rxh4=P. (Checkered pawn to) h5 is allowed then, |
53 | because piece's nature changed. | |
1d184b4c | 54 | |
e8e4adbd | 55 | h3 Pions |
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56 | |
57 | ul | |
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58 | li. |
59 | Pawns can jump two squares only from their initial rank, and only once in the game: | |
60 | a checkered pawn returning on the pawns' start rank cannot jump. However: | |
61 | li. | |
62 | A pawn captured on its starting square (thus becoming "checkered") keeps the | |
63 | right to advance two squares. | |
64 | li. | |
65 | Checkered pawns cannot capture en passant, because while the pawn was "passing" | |
66 | they were of the same color. | |
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67 | |
68 | h2.stageDelimiter Stage 2 | |
69 | ||
6752407b | 70 | p.warn This stage is not (and probably will never be) implemented. |
e7cfa68d | 71 | |
1d184b4c | 72 | p. |
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73 | During the game one of the two players can decide to take control of the |
74 | checkered pieces. | |
1d184b4c | 75 | They thus become autonomous and vulnerable to being captured - stage 2 begins. |
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76 | The other player is in charge of both the white and black pieces, and tries to |
77 | eliminate checkered pieces. | |
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78 | The checkered side wins by checkmating either the white or black king. |
79 | ||
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80 | h4 Variant of stage 2 |
81 | p. | |
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82 | An observer could decide to join the game by taking the checkered pieces |
83 | at any moment. | |
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84 | It then becomes a chess game with three players, with some subtelties to be resolved. |
85 | It was tested in some (real life) games organised by the variant creator. | |
86 | ||
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87 | h3 Special moves |
88 | ||
89 | span Checkered pawns can... | |
90 | ul | |
91 | li move and capture in either direction; | |
92 | li take en passant, | |
93 | li be promoted on either the first or eighth row. | |
94 | ||
95 | h3 Credits | |
96 | ||
97 | ul | |
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98 | li. |
99 | The rules of Checkered Chess were thought up by Patrick Bernier and developed | |
100 | with the help of Benjamin Auder. | |
101 | li. | |
102 | Thanks also to Olive Martin, Christian Poisson, Bevis Martin, Laurent Nouhaud | |
103 | and Frédéric Fradet. |