| | 1 | p.boxed |
| | 2 | | "Capturing" a piece creates an union, |
| | 3 | | which your opponent can still use on his turn. |
| | 4 | | Enter an union to release your piece. |
| | 5 | |
| | 6 | p. |
| | 7 | The variant's name means "Chess of Peace" in Esperanto. |
| | 8 | Paco-Sako was invented by Felix Albers in 2017, and further developped |
| | 9 | also by Rolf Kreibaum and Raimond Fluijt. |
| | 10 | |
| | 11 | p |
| | 12 | | You can learn more about the variant's history and buy nice dedicated |
| | 13 | | pieces (and boards) on the official website |
| | 14 | a(href="http://pacosako.com/") pacosako.com |
| | 15 | | . The variant is playable online at |
| | 16 | a(href="http://pacoplay.com/") pacoplay.com |
| | 17 | | . You're invited to play over there instead :-) |
| | 18 | | Besides, they have cuter unions' drawings. |
| | 19 | |
| | 20 | h3 Basic rules |
| | 21 | |
| | 22 | p. |
| | 23 | There are no captures in this game: only unions of pieces, |
| | 24 | which are released when replaced by another friendly piece. |
| | 25 | The goal is to create an union with the enemy king. |
| | 26 | I like to think of unions as "pieces dancing together", so both |
| | 27 | terms will be used on this page. |
| | 28 | |
| | 29 | figure.showPieces.text-center |
| | 30 | img(src="/images/pieces/Pacosako/wc.png" style="width:60px") |
| | 31 | img(src="/images/pieces/Pacosako/bc.png" style="width:60px") |
| | 32 | img(src="/images/pieces/Pacosako/bt.png" style="width:60px") |
| | 33 | img(src="/images/pieces/Pacosako/wv.png" style="width:60px") |
| | 34 | figcaption Some union pieces. |
| | 35 | |
| | 36 | p. |
| | 37 | At each turn, a player chooses either one of his pieces or an union piece; |
| | 38 | let's write this piece A. |
| | 39 | ul |
| | 40 | li. |
| | 41 | Case 1: A is a dancing piece. Then, it's only allowed to move |
| | 42 | to a vacant square according to our piece's type. |
| | 43 | li. |
| | 44 | Case 2: A is a standard piece. |
| | 45 | It can then be moved anywhere but on our own (normal) pieces. |
| | 46 | "Capturing" an enemy piece creates an union composed of both pieces. |
| | 47 | "Capturing" an union releases our piece formerly in union, |
| | 48 | which has to be moved immediately by the same player. It can in turn |
| | 49 | release another piece, thus following a chain of unions. |
| | 50 | |
| | 51 | p |
| | 52 | | This may appear confusing at first reading, but is simpler than it seems. |
| | 53 | | See for example this |
| | 54 | a(href="https://www.youtube.com/watch?v=tQ2JLsFvfxI") gameplay video |
| | 55 | | , or another one from the same YouTube channel. |
| | 56 | |
| | 57 | figure.diagram-container |
| | 58 | .diagram.diag12 |
| | 59 | | fen:4k3/8/2q5/8/4O3/2w2B2/8/5K2: |
| | 60 | .diagram.diag22 |
| | 61 | | fen:4k3/8/2Y5/8/4s3/2S5/8/5K2: |
| | 62 | figcaption Before and after the chaining move Bxe4, Ne4xc3, Qc3xc6. |
| | 63 | |
| | 64 | h3 Special moves, additional notes |
| | 65 | |
| | 66 | p. |
| | 67 | "Capturing" an union en passant releases our dancing piece from the |
| | 68 | intermediate square. |
| | 69 | |
| | 70 | p Promotion occur when any pawn (in union or not) reaches its final rank. |
| | 71 | |
| | 72 | p. |
| | 73 | Castling is forbidden if a direct or "chained" attack exists on any square |
| | 74 | in the king's path. However, direct or chained attacks on the king are |
| | 75 | otherwise ignored: you can run or remain into "check". |
| | 76 | |
| | 77 | figure.diagram-container |
| | 78 | .diagram |
| | 79 | | fen:r1q1k2r/p1Pb1ppp/5n2/1f1p4/AV5P/2dDP3/P2B1PP1/R3K1NR: |
| | 80 | figcaption. |
| | 81 | Black cannot castle because of the chain Bxc3, c3xb5, b5xb4, b4xf8 |
| | 82 | |
| | 83 | h3 Non-official rules |
| | 84 | |
| | 85 | p. |
| | 86 | I added some small changes, globally to complicate defense. |
| | 87 | These are not in the official rules. |
| | 88 | To disable them, check the box "pacoplay mode". |
| | 89 | |
| | 90 | ul |
| | 91 | li. |
| | 92 | Canceling an union move is forbidden. For example if a bishop is |
| | 93 | dancing with a queen, and makes the move e5 to g3, the other player |
| | 94 | cannot move it back to e5 just after. |
| | 95 | li. |
| | 96 | Pawns (or pawns in unions) can advance two squares from their initial |
| | 97 | position, but you may only do that once per file. |
| | 98 | li. |
| | 99 | If you form an union with your king but end dancing with the |
| | 100 | other king on the other end of the chain, the game is a draw. |
| | 101 | |
| | 102 | figure.diagram-container |
| | 103 | .diagram.diag12 |
| | 104 | | fen:r2qk2r/pbpe1pp1/np5p/2b1p3/4P1t1/2N3K1/PPPP1PPP/R1B3NR: |
| | 105 | .diagram.diag22 |
| | 106 | | fen:r2qX2r/pbpf1pp1/np5p/2b1p3/4P1u1/2N5/PPPP1PPP/R1B3NR: |
| | 107 | figcaption Before and after Kxg4, g4xd7, d7xe8 1/2 |
| | 108 | |
| | 109 | h3 More information |
| | 110 | |
| | 111 | p |
| | 112 | | The authors wrote |
| | 113 | a(href="/variants/Pacosako/manual.pdf") a manual |
| | 114 | | with many more diagrams and explanations. |
| | 115 | | See also the rules |
| | 116 | a(href="https://www.chessvariants.com/rules/paco-shako") |
| | 117 | | on chessvariants.com |
| | 118 | | . |
projects / vchess.git / blame_incremental