[xogo.git] / variants / Bario / complete_rules.html

<!doctype html>
<html>
<head>
  <title>Bario Rules</title>
  <link href="/common.css" rel="stylesheet"/>
  <link href="/variants/Checkered/style.css" rel="stylesheet"/>
</head>
<body>
<div class="full-rules">
<h1>Bario Rules</h1>

<p>
  Bario is a chess variant invented by Panos Louridas in 1998.
  <a href="https://www.bario-chess-checkers-chessphotography-spaceart.de/">
    His website
  </a>
  contains many examples and explanations.
  See also the discussion
  <a href="https://www.chessvariants.com/index/listcomments.php?order=DESC&itemid=Bario">
    on chessvariants.com
  </a>.
</p>

<figure>
  <img class="img-center" src="/extras/Bario/chessboard2.jpg" style="width:75%">
  <figcaption>
    [With author's permission]<br>
    Undefined pieces on first ranks.
  </figcaption>
</figure>

<p>
  Queens, rooks, bishops and knights begin the game in a reserve below
  the board, because their location isn't determined yet.
  At each turn, you can either move something already defined on the board, or
</p>
<ol>
  <li>move a piece from your reserve to any question mark, and then</li>
  <li>move the now defined piece on the board.</li>
</ol>

<p>Your pieces remain in an undefined state until they are moved.</p>

<p>An undefined piece gives check if some specialization giving check exists.</p>

<figure>
  <div class="diag"
       data-fen='uuuuu1uk/p2p1qp1/1p6/7p/7P/5N2/PP1P1PP1/UUUKU1UU w 10 {"captureUndef":"-","enpassant":"-","reserve":"22212221"}'>
  </div>
  <figcaption>The white king cannot move, a rook might be on c8 or e8</figcaption>
</figure>

<h4>Details, special cases</h4>

<p>
  At the first move, you must select a square for the king anywhere on
  the first rank &mdash; preferably in a corner. This deviates from the
  original intention of the author, but this way you will not need to castle
  later in the game. Click on a square to place the king.
</p>

<p>
  If after your move all your pieces are defined (and weren't before), then
  all pieces on board revert to undefined state, unless:
</p>
<ul>
  <li>
    all your pieces (board + reserve) are now of the same type,
    in which case none is put back in reserve, or
  </li>
  <li>
    all opponent's pieces are of the same type, in which case
    they also remain defined.
  </li>
</ul>

<figure>
  <div class="diag left"
       data-fen='uuu1kuuu/2p5/2n5/1p1ppppp/p4PPP/3N3Q/PPPPP1BB/1RRUK3 w 10 {"captureUndef":"-","enpassant":"-","reserve":"22212221"}'>
  </div>
  <div class="diag right"
       data-fen='uuu1kuuu/2p5/2u5/1p1ppppp/p4PPP/3UU2U/PPPPP1UU/1UU1K3 w 10 {"captureUndef":"-","enpassant":"-","reserve":"22212221"}'>
  </div>
  <figcaption>
    Before and after knight definition on d1 (moving to e3)
  </figcaption>
</figure>

<p>
  If one of your undefined pieces is captured, you first have to choose which
  one was captured from the reserve: place it at the capture location.
</p>

</body>
<script src="/utils/drawDiagrams.js"></script>
<script>fenToDiag("Bario");</script>
</html>
Commit	Line	Data
a55fde41 BA	1	<!doctype html>
	2	<html>
	3	<head>
	4	<title>Bario Rules</title>
	5	<link href="/common.css" rel="stylesheet"/>
	6	<link href="/variants/Checkered/style.css" rel="stylesheet"/>
	7	</head>
	8	<body>
	9	<div class="full-rules">
	10	<h1>Bario Rules</h1>
0437a28b	11
a55fde41 BA	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>
0437a28b	23
a55fde41 BA	24	<figure>
	25	<img class="img-center" src="/extras/Bario/chessboard2.jpg" style="width:75%">
	26	<figcaption>
	27	[With author's permission]<br>
0437a28b	28	Undefined pieces on first ranks.
a55fde41 BA	29	</figcaption>
a55fde41 BA	30	</figure>
0437a28b	31
a55fde41	32	<p>
0437a28b BA	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
a55fde41 BA	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>
0437a28b	41
a55fde41	42	<p>Your pieces remain in an undefined state until they are moved.</p>
0437a28b	43
a55fde41	44	<p>An undefined piece gives check if some specialization giving check exists.</p>
0437a28b	45
a55fde41 BA	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>
0437a28b	52
a55fde41 BA	53	<h4>Details, special cases</h4>
	54
	55	<p>
0437a28b BA	56	At the first move, you must select a square for the king anywhere on
	57	the first rank — 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.
a55fde41	60	</p>
0437a28b	61
a55fde41	62	<p>
0437a28b BA	63	If after your move all your pieces are defined (and weren't before), then
0437a28b BA	64	all pieces on board revert to undefined state, unless:
a55fde41 BA	65	</p>
	66	<ul>
	67	<li>
0437a28b BA	68	all your pieces (board + reserve) are now of the same type,
0437a28b BA	69	in which case none is put back in reserve, or
a55fde41 BA	70	</li>
a55fde41 BA	71	<li>
0437a28b BA	72	all opponent's pieces are of the same type, in which case
0437a28b BA	73	they also remain defined.
a55fde41 BA	74	</li>
a55fde41 BA	75	</ul>
0437a28b	76
a55fde41 BA	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>
0437a28b	85	Before and after knight definition on d1 (moving to e3)
a55fde41 BA	86	</figcaption>
a55fde41 BA	87	</figure>
0437a28b	88
a55fde41	89	<p>
0437a28b BA	90	If one of your undefined pieces is captured, you first have to choose which
0437a28b BA	91	one was captured from the reserve: place it at the capture location.
a55fde41 BA	92	</p>
	93
	94	</body>
	95	<script src="/utils/drawDiagrams.js"></script>
	96	<script>fenToDiag("Bario");</script>
	97	</html>