[vchess.git] / client / src / translations / rules / Synchrone1 / en.pug

p.boxed
  | Both players play a move "at the same time".
  | Conflicts are resolved following a few simple rules.

p.
  In order to not rethink a big part of the code, the white move has to be
  played before the black one. However, the black player doesn't see it.

p So both players play "at the same time". Resolving rules:
ul
  li.
    If both moves arrive on the same square, both pieces disappear except
    if one is a king. In this case only the king remains.
  li.
    If a capture was intended but the target moved, the move is still played
    but doesn't capture anything.
p.
  Such captures can be anticipated by capturing our own pieces.
  If the enemy captures as predicted, his piece disappears.
  If he doesn't, the self-capture isn't undone.

figure.diagram-container
  .diagram
    | fen:rnb1kbnr/ppp1pppp/8/3qP3/8/8/PPPP1PPP/RNBQKBNR:
  figcaption After 1.e4 d5 2.e5 Qxd5 (anticipating 2.exd5 which isn't played)

p.
  When the king is under check, a legal orthodox move must be played.
  Some weird situations would occur otherwise, like on the following diagram.
  If we allow self-(re)captures then the king would take on h2 and escape to
  the third rank.

figure.diagram-container
  .diagram
    | fen:7k/8/8/3QR3/3P4/4P3/r6P/q6K:
  figcaption 1.Kxh2 by anticipation isn't allowed: white is checkmated.

h3 End of the game

p.
  Due to the simultaneity, it is possible that a king is captured for example
  after escaping a check in a wrong way, as the following diagram shows.
  So, capturing the king counts as a win, of highest priority.
  A checkmate wins too, but if your king is captured and the other still on
  the board (even if it is mated), you lose.

figure.diagram-container
  .diagram.diag12
    | fen:r3r1bb/ppqRkppp/8/2p1n3/7n/8/PPPPP1P1/RNBQNBK1:
  .diagram.diag22
    | fen:r3r1bb/pp1qRppp/8/2p1n3/7n/8/PPPPP1P1/RNBQNBK1:
  figcaption.
    Left: before Rxe7 (white) and Qxd7 (black)
    Right: after the move (1-0)

h3 Source

p
  a(href="http://www.hexenspiel.de/engl/synchronous-chess/") Synchronous chess
  | , modified to allow en-passant captures
  | and disable the "exchange of captures" stage. 
  a(href="http://www.pion.ch/echecs/variante.php?jeu=synchro")
    | Another description
  | .
Commit	Line	Data
d54f6261 BA	1	p.boxed
	2	\| Both players play a move "at the same time".
	3	\| Conflicts are resolved following a few simple rules.
	4
	5	p.
	6	In order to not rethink a big part of the code, the white move has to be
	7	played before the black one. However, the black player doesn't see it.
	8
	9	p So both players play "at the same time". Resolving rules:
	10	ul
	11	li.
	12	If both moves arrive on the same square, both pieces disappear except
	13	if one is a king. In this case only the king remains.
	14	li.
	15	If a capture was intended but the target moved, the move is still played
	16	but doesn't capture anything.
	17	p.
	18	Such captures can be anticipated by capturing our own pieces.
	19	If the enemy captures as predicted, his piece disappears.
	20	If he doesn't, the self-capture isn't undone.
	21
	22	figure.diagram-container
	23	.diagram
	24	\| fen:rnb1kbnr/ppp1pppp/8/3qP3/8/8/PPPP1PPP/RNBQKBNR:
	25	figcaption After 1.e4 d5 2.e5 Qxd5 (anticipating 2.exd5 which isn't played)
	26
d448f932 BA	27	p.
	28	When the king is under check, a legal orthodox move must be played.
	29	Some weird situations would occur otherwise, like on the following diagram.
	30	If we allow self-(re)captures then the king would take on h2 and escape to
	31	the third rank.
	32
	33	figure.diagram-container
	34	.diagram
	35	\| fen:7k/8/8/3QR3/3P4/4P3/r6P/q6K:
	36	figcaption 1.Kxh2 by anticipation isn't allowed: white is checkmated.
	37
d54f6261 BA	38	h3 End of the game
	39
	40	p.
	41	Due to the simultaneity, it is possible that a king is captured for example
	42	after escaping a check in a wrong way, as the following diagram shows.
	43	So, capturing the king counts as a win, of highest priority.
	44	A checkmate wins too, but if your king is captured and the other still on
	45	the board (even if it is mated), you lose.
	46
	47	figure.diagram-container
	48	.diagram.diag12
	49	\| fen:r3r1bb/ppqRkppp/8/2p1n3/7n/8/PPPPP1P1/RNBQNBK1:
	50	.diagram.diag22
	51	\| fen:r3r1bb/pp1qRppp/8/2p1n3/7n/8/PPPPP1P1/RNBQNBK1:
	52	figcaption.
	53	Left: before Rxe7 (white) and Qxd7 (black)
	54	Right: after the move (1-0)
	55
	56	h3 Source
	57
	58	p
	59	a(href="http://www.hexenspiel.de/engl/synchronous-chess/") Synchronous chess
	60	\| , modified to allow en-passant captures
	61	\| and disable the "exchange of captures" stage.
2c5d7b20 BA	62	a(href="http://www.pion.ch/echecs/variante.php?jeu=synchro")
2c5d7b20 BA	63	\| Another description
8c267d0c	64	\| .