client/src/translations/rules/Checkered1/en.pug

   1 p.boxed
   2   | The capture of an enemy piece produces a new "checkered" piece belonging
   3   | to both players.
   4
   5 figure.showPieces.text-center
   6   img(src="/images/pieces/Checkered/cp.svg")
   7   img(src="/images/pieces/Checkered/cr.svg")
   8   img(src="/images/pieces/Checkered/cn.svg")
   9   img(src="/images/pieces/Checkered/cb.svg")
  10   img(src="/images/pieces/Checkered/cq.svg")
  11   figcaption Checkered pieces, born after captures.
  12
  13 p Note: the initial French name for this variant is "l'Échiqueté".
  14
  15 p The game potentially evolves in two stages.
  16
  17 h2.stageDelimiter Stage 1
  18
  19 h3 Basics
  20
  21 ol
  22   li
  23     | Each capture produces a new piece, taking on nature of
  24     | the capturing or captured one.
  25   li
  26     | The new piece arising from a capture has a new color:
  27     | "checkered", as illustrated above.
  28   li
  29     | All checkered pieces belong to the player in turn and can
  30     | capture the opponents pieces.
  31
  32 p Remarks:
  33 ul
  34   li.
  35     A non-capturing checkered move cannot be "undone" right after since
  36     this would repeat the same position.
  37   li Checkered pieces cannot be captured.
  38
  39 figure.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,
  44     because piece's nature changed.
  45
  46 h3 Pawns
  47
  48 ul
  49   li.
  50     Pawns can jump two squares only from their initial rank, and only once in
  51     the game: a checkered pawn returning on the pawns' start rank cannot jump.
  52     However:
  53   li.
  54     A pawn captured on its starting square (thus becoming "checkered") keeps
  55     the right to advance two squares.
  56   li.
  57     Checkered pawns cannot capture en passant, because while the pawn was
  58     "passing" they were of the same color.
  59
  60 h3 Stalemate or checkmate?
  61
  62 p.
  63   The following diagram seems to show a mating pattern, but the king if
  64   "attacked" by a checkered pawn &ndash; which still belongs to white.
  65   Therefore, it can be considered that it's not really a check because
  66   white is unable to "give back the turn".
  67   Without the black bishop on a7 it would be mate (without debate), because
  68   the king could virtually go to g1 before being captured by the
  69   pawn-chamaleon.
  70
  71 figure.diagram-container
  72   .diagram
  73     | fen:7k/b5pp/8/8/8/8/6ss/7K:
  74   figcaption After 1...g2+(#?)
  75
  76 p.
  77   The interface considers that it's mate in both cases, following the idea
  78   "it's checkmate if we cannot move, and the opponent on its turn could
  79   take the king" (maybe after an impossible move).
  80
  81 h2.stageDelimiter Stage 2
  82
  83 p.
  84   During the game one of the two players can decide to take control of the
  85   checkered pieces.
  86   They thus become autonomous and vulnerable to being captured - stage 2
  87   begins. The other player is in charge of both the white and black pieces, and
  88   tries to eliminate checkered pieces.
  89   The checkered side wins by checkmating either the white or black king.
  90
  91 p.
  92   To take the checkered pieces, play a move that "takes opponent's king" with
  93   your king, and then execute a move. This is possible only if no such move
  94   can capture a king.
  95
  96 h4 Variant of stage 2 (unimplemented)
  97 p.
  98   An observer could decide to join the game by taking the checkered pieces
  99   at any moment.
 100   It then becomes a chess game with three players, with some subtelties to be
 101   resolved. It was tested in some (real life) games organised by the variant
 102   inventor.
 103
 104 h3 Special moves
 105
 106 p Checkered pawns can...
 107 ul
 108   li move and capture in either direction;
 109   li take en passant,
 110   li be promoted on either the first or eighth row.
 111
 112 h3 Credits
 113
 114 ul
 115   li.
 116     The rules of Checkered Chess were thought up by Patrick Bernier and
 117     developed with the help of Benjamin Auder around 2011-2012.
 118   li.
 119     Thanks also to Olive Martin, Christian Poisson, Bevis Martin, Laurent
 120     Nouhaud and Frédéric Fradet.