[vchess.git] / views / rules / Checkered.pug

p.boxed
	| The capture of an enemy piece produces a new "checkered" piece belonging
	| to both players.

figure.showPieces.center-align
	img(src="/images/tmp_checkered/cp.png")
	img(src="/images/tmp_checkered/cr.png")
	img(src="/images/tmp_checkered/cn.png")
	img(src="/images/tmp_checkered/cb.png")
	img(src="/images/tmp_checkered/cq.png")
	img(src="/images/tmp_checkered/no_ck.png")
	figcaption Checkered pieces, born after captures.

h3 Specifications

ul
	li Chessboard: standard.
	li Material: additional checkered pieces.
	li Non-capturing moves: standard; see below.
	li Special moves: standard; see below.
	li Captures: standard; see below.
	li End of game: standard.

p The game potentially evolves in two stages.

h2.stageDelimiter Stage 1

h3 Basics

ol
	li
		| Each capture produces a new piece, taking on nature of
		| the capturing or captured one.
	li
		| The new piece arising from a capture has a new color:
		| "checkered", as illustrated above.
	li
		| All checkered pieces belong to the player in turn and can
		| capture the opponents pieces.

span Remarks:
ul
	li A checkered move cannot be "undone" right after if this repeat the position.
	li Checkered chess pieces cannot be captured.

figure.diagram-container
	.diagram
		| fen:2kr4/pp6/2p5/4ss1r/1P2ns1P/2Np4/P1P1P1BP/R2o1RK1:
	figcaption.
		Black plays Rxh4=P. (Checkered pawn to) h5 is allowed then,
		because piece's nature changed.

h3 Pawn moves

ul
	li A pawn captured on its starting square keeps the right to advance two squares.
	li Checkered pawns cannot capture en passant.

h2.stageDelimiter Stage 2

p.warn This stage is not (and probably will never be) implemented.

p.
	During the game one of the two players can decide to take control of the
	checkered pieces.
	They thus become autonomous and vulnerable to being captured - stage 2 begins.
	The other player is in charge of both the white and black pieces, and tries to
	eliminate checkered pieces.
	The checkered side wins by checkmating either the white or black king.

h4 Variant of stage 2
p.
	An observer could decide to join the game by taking the checkered pieces
	at any moment.
	It then becomes a chess game with three players, with some subtelties to be resolved.
	It was tested in some (real life) games organised by the variant creator.

h3 Special moves

span Checkered pawns can...
ul
	li move and capture in either direction;
	li take en passant,
	li be promoted on either the first or eighth row.

h3 Credits

ul
	li.
		The rules of Checkered Chess were thought up by Patrick Bernier and developed
		with the help of Benjamin Auder.
	li.
		Thanks also to Olive Martin, Christian Poisson, Bevis Martin, Laurent Nouhaud
		and Frédéric Fradet.
Commit	Line	Data
1d184b4c	1	p.boxed
92342261 BA	2	\| The capture of an enemy piece produces a new "checkered" piece belonging
92342261 BA	3	\| to both players.
1d184b4c BA	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
92342261 BA	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.
1d184b4c BA	40
	41	span Remarks:
	42	ul
	43	li A checkered move cannot be "undone" right after if this repeat the position.
	44	li Checkered chess pieces cannot be captured.
	45
	46	figure.diagram-container
	47	.diagram
	48	\| fen:2kr4/pp6/2p5/4ss1r/1P2ns1P/2Np4/P1P1P1BP/R2o1RK1:
	49	figcaption.
92342261 BA	50	Black plays Rxh4=P. (Checkered pawn to) h5 is allowed then,
92342261 BA	51	because piece's nature changed.
1d184b4c BA	52
	53	h3 Pawn moves
	54
	55	ul
	56	li A pawn captured on its starting square keeps the right to advance two squares.
	57	li Checkered pawns cannot capture en passant.
	58
	59	h2.stageDelimiter Stage 2
	60
6752407b	61	p.warn This stage is not (and probably will never be) implemented.
e7cfa68d	62
1d184b4c	63	p.
92342261 BA	64	During the game one of the two players can decide to take control of the
92342261 BA	65	checkered pieces.
1d184b4c	66	They thus become autonomous and vulnerable to being captured - stage 2 begins.
6752407b BA	67	The other player is in charge of both the white and black pieces, and tries to
6752407b BA	68	eliminate checkered pieces.
1d184b4c BA	69	The checkered side wins by checkmating either the white or black king.
1d184b4c BA	70
6752407b BA	71	h4 Variant of stage 2
6752407b BA	72	p.
92342261 BA	73	An observer could decide to join the game by taking the checkered pieces
92342261 BA	74	at any moment.
6752407b BA	75	It then becomes a chess game with three players, with some subtelties to be resolved.
	76	It was tested in some (real life) games organised by the variant creator.
	77
1d184b4c BA	78	h3 Special moves
	79
	80	span Checkered pawns can...
	81	ul
	82	li move and capture in either direction;
	83	li take en passant,
	84	li be promoted on either the first or eighth row.
	85
	86	h3 Credits
	87
	88	ul
6752407b BA	89	li.
	90	The rules of Checkered Chess were thought up by Patrick Bernier and developed
	91	with the help of Benjamin Auder.
	92	li.
	93	Thanks also to Olive Martin, Christian Poisson, Bevis Martin, Laurent Nouhaud
	94	and Frédéric Fradet.