variants/Bario/complete_rules.html

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   2 <html>
   3 <head>
   4   <title>Bario Rules</title>
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   7 </head>
   8 <body>
   9 <div class="full-rules">
  10 <h1>Bario Rules</h1>
  11
  12 <p>
  13   Bario is a chess variant invented by Panos Louridas in 1998.
  14   <a href="https://www.bario-chess-checkers-chessphotography-spaceart.de/">
  15     His website
  16   </a>
  17   contains many examples and explanations.
  18   See also the discussion
  19   <a href="https://www.chessvariants.com/index/listcomments.php?order=DESC&itemid=Bario">
  20     on chessvariants.com
  21   </a>.
  22 </p>
  23
  24 <figure>
  25   <img class="img-center" src="/extras/Bario/chessboard2.jpg" style="width:75%">
  26   <figcaption>
  27     [With author's permission]<br>
  28     Undefined pieces on first ranks.
  29   </figcaption>
  30 </figure>
  31
  32 <p>
  33   Queens, rooks, bishops and knights begin the game in a reserve below
  34   the board, because their location isn't determined yet.
  35   At each turn, you can either move something already defined on the board, or
  36 </p>
  37 <ol>
  38   <li>move a piece from your reserve to any question mark, and then</li>
  39   <li>move the now defined piece on the board.</li>
  40 </ol>
  41
  42 <p>Your pieces remain in an undefined state until they are moved.</p>
  43
  44 <p>An undefined piece gives check if some specialization giving check exists.</p>
  45
  46 <figure>
  47   <div class="diag"
  48        data-fen='uuuuu1uk/p2p1qp1/1p6/7p/7P/5N2/PP1P1PP1/UUUKU1UU w 10 {"captureUndef":"-","enpassant":"-","reserve":"22212221"}'>
  49   </div>
  50   <figcaption>The white king cannot move, a rook might be on c8 or e8</figcaption>
  51 </figure>
  52
  53 <h4>Details, special cases</h4>
  54
  55 <p>
  56   At the first move, you must select a square for the king anywhere on
  57   the first rank &mdash; preferably in a corner. This deviates from the
  58   original intention of the author, but this way you will not need to castle
  59   later in the game. Click on a square to place the king.
  60 </p>
  61
  62 <p>
  63   If after your move all your pieces are defined (and weren't before), then
  64   all pieces on board revert to undefined state, unless:
  65 </p>
  66 <ul>
  67   <li>
  68     all your pieces (board + reserve) are now of the same type,
  69     in which case none is put back in reserve, or
  70   </li>
  71   <li>
  72     all opponent's pieces are of the same type, in which case
  73     they also remain defined.
  74   </li>
  75 </ul>
  76
  77 <figure>
  78   <div class="diag left"
  79        data-fen='uuu1kuuu/2p5/2n5/1p1ppppp/p4PPP/3N3Q/PPPPP1BB/1RRUK3 w 10 {"captureUndef":"-","enpassant":"-","reserve":"22212221"}'>
  80   </div>
  81   <div class="diag right"
  82        data-fen='uuu1kuuu/2p5/2u5/1p1ppppp/p4PPP/3UU2U/PPPPP1UU/1UU1K3 w 10 {"captureUndef":"-","enpassant":"-","reserve":"22212221"}'>
  83   </div>
  84   <figcaption>
  85     Before and after knight definition on d1 (moving to e3)
  86   </figcaption>
  87 </figure>
  88
  89 <p>
  90   If one of your undefined pieces is captured, you first have to choose which
  91   one was captured from the reserve: place it at the capture location.
  92 </p>
  93
  94 </body>
  95 <script src="/utils/drawDiagrams.js"></script>
  96 <script>fenToDiag("Bario");</script>
  97 </html>