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

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