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