a(href="http://pacosako.com/") pacosako.com
| . The variant is playable online at
a(href="http://pacoplay.com/") pacoplay.com
- | .
- br
- | Consequently, Paco-Sako is
- span.warning not garanteed to remain playable on vchess.club.
- br
- | You're invited to play over there instead :-)
+ | . You're invited to play over there instead :-)
| Besides, they have cuter unions' drawings.
h3 Basic rules
terms will be used on this page.
figure.showPieces.text-center
- img(src="/images/pieces/Pacosako/wc.png")
- img(src="/images/pieces/Pacosako/bc.png")
- img(src="/images/pieces/Pacosako/bt.png")
- img(src="/images/pieces/Pacosako/wv.png")
+ 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.
p Promotion occur when any pawn (in union or not) reaches its final rank.
p.
- Attacks on the king are ignored in this implementation: you can run
- or remain into "check". So, castling conditions are quite permissive.
- Also, 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.
- span.warning This does not follow (at all) the official rules.
+ 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.diag12
- | fen:rnbq1r2/1ppppp1k/p6p/4P1OP/1PPP3c/3B4/P2V1PP1/R2QK1N1:
- .diagram.diag22
- | fen:rnbq1r2/1ppppp1k/p7/4P1dP/1PPPn2c/3B4/P2V1PP1/R2QK1N1:
+ .diagram
+ | fen:r1q1k2r/p1Pb1ppp/5n2/1f1p4/AV5P/2dDP3/P2B1PP1/R3K1NR:
figcaption.
- Left: Bd3(+) can be covered by Right: h6xg5 (releasing the knight), Ne4.
+ Black cannot castle because of the chain Bxc3, c3xb5, b5xb4, b4xf8
+
+h3 Non-official rules
p.
- 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. This is also non-official.
+ 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
| 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
+ | .