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

   1 p.boxed
   2   | Pieces generally move like an orthodox queen,
   3   | but capturing rules are quite complex.
   4
   5 p
   6   | Note: 'Baroque' is the initial name thought by the author,
   7   | but 'Ultima' is also largely adopted.
   8   a(href="https://www.chessvariants.com/people.dir/abbott.html")
   9     | He prefers 'Baroque'
  10   | , and I think me too.
  11
  12 h4 Pieces names
  13
  14 p Pieces names refer to the way they capture, which is described later.
  15 ul
  16   li Pawn : Pawn or Pincer
  17   li Rook : Coordinator
  18   li Knight : Long Leaper
  19   li Bishop : Chameleon
  20   li Queen : Withdrawer
  21   li King : King (same behavior as in standard chess)
  22 p.
  23   Besides, a new piece is introduced: the immobilizer, written by the letter
  24   'm' in FEN diagrams and PGN games. It is represented by an upside-down rook:
  25
  26 figure.diagram-container
  27   .diagram
  28     | fen:8/8/4m3/8/8/8/3M4/8:
  29   figcaption Immobilizers on d2 and e6.
  30
  31 h3 Non-capturing moves
  32
  33 p.
  34   Pawns move as orthodox rooks, and the king moves as usual,
  35   one square in any direction.
  36   All other pieces move like an orthodox queen.
  37
  38 p.
  39   When a piece is adjacent to an enemy immobilizer, it cannot move unless
  40   the enemy immobilizer is adjacent to a friendly immobilizer or chameleon
  41   (cancelling the powers of the opponent's immobilizer).
  42 p
  43   | Note : this corresponds to the "pure rules" described on
  44   a(href="http://www.inference.org.uk/mackay/ultima/ultima.html") this page
  45   | , which slightly differ from the initial rules.
  46   | The aim is to get rid of the weird suicide rule by weakening the
  47   | immobilizers lock. In particular, in the original rules two adjacent
  48   | immobilizer are stuck forever until one is captured. Note that it's still
  49   | the case if all chameleons disappeared.
  50
  51 h3 Capturing moves
  52
  53 p.
  54   Easy case first: the king captures as usual, by moving onto an adjacent
  55   square occupied by an enemy piece. But this is the only piece following
  56   orthodox rules, and also the only one which captures by moving onto an
  57   occupied square. All other pieces capture passively: they land on a free
  58   square and captured units are determined by some characteristics of the
  59   movement.
  60
  61 p Note 1: the immobilizer does not capture.
  62
  63 p.
  64   Note 2: for passive captures, a 'X' is added at the end of the move notation,
  65   to indicate that something was taken (replaying the game is necessary to know
  66   where).
  67
  68 h4 Pawns/Pincers
  69
  70 p.
  71   If at the end of its movement a pawn is horizontally or vertically adjacent
  72   to an enemy piece, which itself is next to a friendly piece (in the same
  73   direction), the "pinced" unit is removed from the board.
  74
  75 figure.diagram-container
  76   .diagram
  77     | fen:7k/5ppp/2N5/2n5/3rB3/8/PPP5/K7:
  78   figcaption 1.Pc2c4 captures both coordinator and long leaper.
  79
  80 h4 Coordinators (rooks)
  81
  82 p.
  83   Imagine that rook and king of the same color are two corners of a rectangle
  84   (this works if these two pieces are unaligned).
  85   If at the end of a rook move an enemy piece stands in any of the two
  86   remaining corners, it is captured.
  87
  88 figure.diagram-container
  89   .diagram
  90     | fen:8/2b4K/2q5/3p1N1p/8/8/2R5/k7:
  91   figcaption 1.Rc5 captures on c7 and h5.
  92
  93 h4 Long leapers (knights)
  94
  95 p.
  96   A knight captures exactly as a queen in international draughts game: by
  97   jumping over its enemies, as many times as it can/want but always in the same
  98   direction. In this respect it is less powerful than a draughts' queen:
  99   on the following diagram c8 or f6 cannot be captured.
 100   However, the knight does not have to maximize the number of captured units
 101   (as is the case in draughts).
 102
 103 figure.diagram-container
 104   .diagram
 105     | fen:2n4k/3r4/5b2/3p4/1m6/3b4/3N4/K7 d4,d6,d8,a5:
 106   figcaption All marked squares captures are playable from d2.
 107
 108 h4 Withdrawer (queen)
 109
 110 p.
 111   The queen captures by moving away from an adjacent enemy piece, in the
 112   opposite direction (without jumping, the path must be free).
 113
 114 figure.diagram-container
 115   .diagram
 116     | fen:7k/8/8/3Qr3/8/8/8/K7 a5,b5,c5:
 117   figcaption 1.Qa5, 1.Qb5 or 1.Qc5 captures the black rook.
 118
 119 h4 Chameleon (bishop)
 120
 121 p The chameleon captures pieces in the way they would capture. So, it
 122 ul
 123   li pinces pawns (if moving like a pawn),
 124   li withdraws from withdrawers,
 125   li leaps over long leapers,
 126   li coordinates coordinators.
 127 p ...and these captures can be combined.
 128
 129 p.
 130   Remark: the move indicated on the diagram doesn't capture the black pincer
 131   on e5, since it is a diagonal move (not like a pawn).
 132
 133 figure.diagram-container
 134   .diagram
 135     | fen:7k/8/8/r3pP2/2n5/8/B7/K7 a5,c4:
 136   figcaption 1.Bd5 captures the two marked pieces.
 137
 138 p.
 139   Besides, chameleon immobilizes immobilizers (but cannot capture them since
 140   they do not capture).
 141
 142 p.
 143   A chameleon captures the king in the same way the king captures, which means
 144   that a chameleon adjacent to a king gives check.
 145
 146 h3 End of the game
 147
 148 p.
 149   The game ends by checkmate or stalemate as in standard chess. Note however
 150   that checks are more difficult to see, because of the exotic capturing rules.
 151   For example, on the following diagram the white king cannot move to e5
 152   because then the black pawn could capture by moving next to it.
 153
 154 figure.diagram-container
 155   .diagram
 156     | fen:7k/8/8/p4r/4K3/8/8/8 e5:
 157   figcaption 1.Ke5 is impossible
 158
 159 h3 More information
 160
 161 p
 162   | A good starting point is the
 163   a(href="https://en.wikipedia.org/wiki/Baroque_chess") Wikipedia page
 164   | , which also gives pointers to other interesting pages (including
 165   | chessvariants.com, as usual).
 166
 167 p Inventor: Robert Abbott (1963)