-p.boxed TODO
+p.boxed
+ | "Capturing" a piece creates an union,
+ | which your opponent can still use on his turn.
+ | Enter an union to release your piece.
-p WARNING 1: totally buggish right now.
+p.
+ The variant's name means "Chess of Peace" in Esperanto.
+ Paco-Sako was invented by Felix Albers in 2017, and further developped
+ also by Rolf Kreibaum and Raimond Fluijt.
-p WARNING 2: this variant may in the end not be playable here at all - will depend on the author decision.
+p
+ | You can learn more about the variant's history and buy nice dedicated
+ | pieces (and boards) on the official website
+ a(href="http://pacosako.com/") pacosako.com
+ | . The variant is playable online at
+ a(href="http://pacoplay.com/") pacoplay.com
+ | . You're invited to play over there instead :-)
+ | Besides, they have cuter unions' drawings.
+
+h3 Basic rules
+
+p.
+ There are no captures in this game: only unions of pieces,
+ which are released when replaced by another friendly piece.
+ The goal is to create an union with the enemy king.
+ I like to think of unions as "pieces dancing together", so both
+ terms will be used on this page.
+
+figure.showPieces.text-center
+ img(src="/images/pieces/Pacosako/wc.png" style="width:60px")
+ img(src="/images/pieces/Pacosako/bc.png" style="width:60px")
+ img(src="/images/pieces/Pacosako/bt.png" style="width:60px")
+ img(src="/images/pieces/Pacosako/wv.png" style="width:60px")
+ figcaption Some union pieces.
+
+p.
+ At each turn, a player chooses either one of his pieces or an union piece;
+ let's write this piece A.
+ul
+ li.
+ Case 1: A is a dancing piece. Then, it's only allowed to move
+ to a vacant square according to our piece's type.
+ li.
+ Case 2: A is a standard piece.
+ It can then be moved anywhere but on our own (normal) pieces.
+ "Capturing" an enemy piece creates an union composed of both pieces.
+ "Capturing" an union releases our piece formerly in union,
+ which has to be moved immediately by the same player. It can in turn
+ release another piece, thus following a chain of unions.
+
+p
+ | This may appear confusing at first reading, but is simpler than it seems.
+ | See for example this
+ a(href="https://www.youtube.com/watch?v=tQ2JLsFvfxI") gameplay video
+ | , or another one from the same YouTube channel.
+
+figure.diagram-container
+ .diagram.diag12
+ | fen:4k3/8/2q5/8/4O3/2w2B2/8/5K2:
+ .diagram.diag22
+ | fen:4k3/8/2Y5/8/4s3/2S5/8/5K2:
+ figcaption Before and after the chaining move Bxe4, Ne4xc3, Qc3xc6.
+
+h3 Special moves, additional notes
+
+p.
+ "Capturing" an union en passant releases our dancing piece from the
+ intermediate square.
+
+p Promotion occur when any pawn (in union or not) reaches its final rank.
+
+p.
+ Castling is forbidden if a direct or "chained" attack exists on any square
+ in the king's path. However, direct or chained attacks on the king are
+ otherwise ignored: you can run or remain into "check".
+
+figure.diagram-container
+ .diagram
+ | fen:r1q1k2r/p1Pb1ppp/5n2/1f1p4/AV5P/2dDP3/P2B1PP1/R3K1NR:
+ figcaption.
+ Black cannot castle because of the chain Bxc3, c3xb5, b5xb4, b4xf8
+
+h3 Non-official rules
+
+p.
+ I added some small changes, globally to complicate defense.
+ These are not in the official rules.
+ To disable them, check the box "pacoplay mode".
+
+ul
+ li.
+ Canceling an union move is forbidden. For example if a bishop is
+ dancing with a queen, and makes the move e5 to g3, the other player
+ cannot move it back to e5 just after.
+ li.
+ Pawns (or pawns in unions) can advance two squares from their initial
+ position, but you may only do that once per file.
+ li.
+ If you form an union with your king but end dancing with the
+ other king on the other end of the chain, the game is a draw.
+
+figure.diagram-container
+ .diagram.diag12
+ | fen:r2qk2r/pbpe1pp1/np5p/2b1p3/4P1t1/2N3K1/PPPP1PPP/R1B3NR:
+ .diagram.diag22
+ | fen:r2qX2r/pbpf1pp1/np5p/2b1p3/4P1u1/2N5/PPPP1PPP/R1B3NR:
+ figcaption Before and after Kxg4, g4xd7, d7xe8 1/2
+
+h3 More information
p
- a(href="https://www.youtube.com/watch?v=tQ2JLsFvfxI") Video
- | showing gameplay. See also
- a(href="http://pacosako.com/") the main website
- | , and the associated
- a(href="http://pacoplay.com/") playing area
+ | The authors wrote
+ a(href="/variants/Pacosako/manual.pdf") a manual
+ | with many more diagrams and explanations.
+ | See also the rules
+ a(href="https://www.chessvariants.com/rules/paco-shako")
+ | on chessvariants.com
| .
projects / vchess.git / blobdiff