/play_rav
Plays the moves in a RAV movetext.
variant
The chess variant as per these options.
classicalchess, also known as standard or slow chess.960is the same as classical chess except that the starting position of the pieces is randomized.dunsanyis an asymmetric variant in which Black has the standard chess army and White has 32 pawns.losingchess, the objective of each player is to lose all of their pieces or be stalemated.racing-kingsconsists of being the first player to move their king to the eighth row.
movetext
The sequence of moves played in the game.
Usage
Example
ws.send('/play_rav "{\\"variant\\":\\"classical\\",\\"movetext\\":\\"{ Adapted notes, originally by J. R. Capablanca. } 1.d4 d5 2.Nf3 e6 3.c4 Nf6 4.Bg5 Be7 5.e3 Nbd7 6.Nc3 O-O 7.Rc1 b6 8.cxd5 exd5 9.Bb5 {is a new move which has no merit outside of its novelty. I played it for the first time against Teichmann in Berlin in 1913. } (9.Bd3 { is the normal move but Qa4 may be the best, after all. }) 9...Bb7 10.Qa4 a6 (10...c5 { is the proper continuation.}) 11.Bxd7 Nxd7 12.Bxe7 Qxe7 13.Qb3 { with the idea of preventing c5, but still better would have been to castle.} Qd6 (13...c5 { could be played as well. Black would come out all right from the many complications arising from this move.}) 14.O-O Rfd8 15.Rfd1 Rab8 16.Ne1 { in order to draw the knight away from the line of the bishop, which would soon be open, as it actually occurred in the game.} Nf6 17.Rc2 c5 18.dxc5 bxc5 19.Ne2 Ne4 (19...Ng4 { begins a failed attack. }) (19...d4 { begins a failed attack. }) 20.Qa3 Rbc8 21.Ng3 Nxg3 22.hxg3 Qb6 23.Rcd2 (23.Rdc1 { would not have been better because of d4, etc. } d4) 23...h6 24.Nf3 d4 25.exd4 Bxf3 26.Qxf3 Rxd4 27.Rc2 Rxd1+ 28.Qxd1 Rd8 29.Qe2 Qd6 30.Kh2 Qd5 31.b3 Qf5 32.g4 Qg5 33.g3 Rd6 { is unquestionably the best move; with any other move Black would, perhaps, have found it impossible to draw.} 34.Kg2 g6 35.Qc4 Re6 36.Qxc5 Qxg4 37.f3 Qg5 38.Qxg5 hxg5 39.Kf2 Rd6 40.Ke3 Re6+ 41.Kd4 Rd6+ (42.Kc5 { is too risky. The way to win was not at all clear and I even thought that with that move Black might win. }) 42.Ke3 Re6+ 43.Kf2 Rd6 44.g4 Rd1 (45.Ke3 { is the right move to make. It is perhaps the only chance White has to win, or at least come near it. } Ra1 46.Kd4 { gains an important move. } Kg7 47.b4 Rf1 { accomplishes nothing with the white king on d4. }) 45.Ke2 { was played instead. } Ra1 46.Kd3 Kg7 47.b4 Rf1 { was the best move with the white king on d3. } 48.Ke3 { and the remainder of the game needs no comments. } Rb1 49.Rc6 Rxb4 50.Rxa6 Rb2 1/2-1/2\\"}"');
{
"/play_rav": {
"variant": "classical",
"turn": "w",
"filtered": "{Adapted notes, originally by Robert James Fischer from a television interview.} 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 O-O 6.c5 {is a mistake already; instead it should be played e3, naturally.} 6...b6 7.b4 bxc5 8.dxc5 a5 9.a3 d4 {is a fantastic move; it's the winning move. The pawn can't be taken with the knight because of axb4.} 10.Bxf6 gxf6 11.Na4 e5 {because the center is easily winning. Black's kingside weakness is nothing.} 12.b5 Be6 {with the idea of dominating the game with a powerful mobile center.} 13.g3 c6 14.bxc6 Nxc6 15.Bg2 Rb8 {threatening Bb3.} 16.Qc1 d3 17.e3 e4 18.Nd2 f5 19.O-O Re8 {is a very modern move; a quiet positional move. The rook is doing nothing now, but later...} 20.f3 {to break up the center, it's the only chance for White.} 20...Nd4 21.exd4 Qxd4+ 22.Kh1 e3 (22...Qxa4 {allows Black to easily regain material.}) 23.Nc3 Bf6 24.Ndb1 d2 25.Qc2 Bb3 26.Qxf5 d1=Q 27.Nxd1 Bxd1 28.Nc3 e2 29.Raxd1 Qxc3 {and White resigns. The center has prevailed.}",
"movetext": " 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 O-O 6.c5 b6 7.b4 bxc5 8.dxc5 a5 9.a3 d4 10.Bxf6 gxf6 11.Na4 e5 12.b5 Be6 13.g3 c6 14.bxc6 Nxc6 15.Bg2 Rb8 16.Qc1 d3 17.e3 e4 18.Nd2 f5 19.O-O Re8 20.f3 Nd4 21.exd4 Qxd4+ 22.Kh1 e3 23.Nc3 Bf6 24.Ndb1 d2 25.Qc2 Bb3 26.Qxf5 d1=Q 27.Nxd1 Bxd1 28.Nc3 e2 29.Raxd1 Qxc3 ",
"breakdown": [
"{Adapted notes, originally by Robert James Fischer from a television interview.} 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 O-O 6.c5 {is a mistake already; instead it should be played e3, naturally.} 6...b6 7.b4 bxc5 8.dxc5 a5 9.a3 d4 {is a fantastic move; it's the winning move. The pawn can't be taken with the knight because of axb4.} 10.Bxf6 gxf6 11.Na4 e5 {because the center is easily winning. Black's kingside weakness is nothing.} 12.b5 Be6 {with the idea of dominating the game with a powerful mobile center.} 13.g3 c6 14.bxc6 Nxc6 15.Bg2 Rb8 {threatening Bb3.} 16.Qc1 d3 17.e3 e4 18.Nd2 f5 19.O-O Re8 {is a very modern move; a quiet positional move. The rook is doing nothing now, but later...} 20.f3 {to break up the center, it's the only chance for White.} 20...Nd4 21.exd4 Qxd4+ 22.Kh1 e3",
"22...Qxa4 {allows Black to easily regain material.}",
"23.Nc3 Bf6 24.Ndb1 d2 25.Qc2 Bb3 26.Qxf5 d1=Q 27.Nxd1 Bxd1 28.Nc3 e2 29.Raxd1 Qxc3 {and White resigns. The center has prevailed.}"
],
"fen": [
"rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -",
"rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq d3",
"rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq d6",
"rnbqkbnr/ppp1pppp/8/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq c3",
"rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -",
"rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq -",
"rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -",
"rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq -",
"rnbqk2r/ppp1bppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq -",
"rnbqk2r/ppp1bppp/4pn2/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq -",
"rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R w KQ -",
"rnbq1rk1/ppp1bppp/4pn2/2Pp2B1/3P4/2N2N2/PP2PPPP/R2QKB1R b KQ -",
"rnbq1rk1/p1p1bppp/1p2pn2/2Pp2B1/3P4/2N2N2/PP2PPPP/R2QKB1R w KQ -",
"rnbq1rk1/p1p1bppp/1p2pn2/2Pp2B1/1P1P4/2N2N2/P3PPPP/R2QKB1R b KQ b3",
"rnbq1rk1/p1p1bppp/4pn2/2pp2B1/1P1P4/2N2N2/P3PPPP/R2QKB1R w KQ -",
"rnbq1rk1/p1p1bppp/4pn2/2Pp2B1/1P6/2N2N2/P3PPPP/R2QKB1R b KQ -",
"rnbq1rk1/2p1bppp/4pn2/p1Pp2B1/1P6/2N2N2/P3PPPP/R2QKB1R w KQ a6",
"rnbq1rk1/2p1bppp/4pn2/p1Pp2B1/1P6/P1N2N2/4PPPP/R2QKB1R b KQ -",
"rnbq1rk1/2p1bppp/4pn2/p1P3B1/1P1p4/P1N2N2/4PPPP/R2QKB1R w KQ -",
"rnbq1rk1/2p1bppp/4pB2/p1P5/1P1p4/P1N2N2/4PPPP/R2QKB1R b KQ -",
"rnbq1rk1/2p1bp1p/4pp2/p1P5/1P1p4/P1N2N2/4PPPP/R2QKB1R w KQ -",
"rnbq1rk1/2p1bp1p/4pp2/p1P5/NP1p4/P4N2/4PPPP/R2QKB1R b KQ -",
"rnbq1rk1/2p1bp1p/5p2/p1P1p3/NP1p4/P4N2/4PPPP/R2QKB1R w KQ -",
"rnbq1rk1/2p1bp1p/5p2/pPP1p3/N2p4/P4N2/4PPPP/R2QKB1R b KQ -",
"rn1q1rk1/2p1bp1p/4bp2/pPP1p3/N2p4/P4N2/4PPPP/R2QKB1R w KQ -",
"rn1q1rk1/2p1bp1p/4bp2/pPP1p3/N2p4/P4NP1/4PP1P/R2QKB1R b KQ -",
"rn1q1rk1/4bp1p/2p1bp2/pPP1p3/N2p4/P4NP1/4PP1P/R2QKB1R w KQ -",
"rn1q1rk1/4bp1p/2P1bp2/p1P1p3/N2p4/P4NP1/4PP1P/R2QKB1R b KQ -",
"r2q1rk1/4bp1p/2n1bp2/p1P1p3/N2p4/P4NP1/4PP1P/R2QKB1R w KQ -",
"r2q1rk1/4bp1p/2n1bp2/p1P1p3/N2p4/P4NP1/4PPBP/R2QK2R b KQ -",
"1r1q1rk1/4bp1p/2n1bp2/p1P1p3/N2p4/P4NP1/4PPBP/R2QK2R w KQ -",
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"1r1q1rk1/4bp1p/2n1bp2/p1P1p3/N7/P2pPNP1/5PBP/R1Q1K2R b KQ -",
"1r1q1rk1/4bp1p/2n1bp2/p1P5/N3p3/P2pPNP1/5PBP/R1Q1K2R w KQ -",
"1r1q1rk1/4bp1p/2n1bp2/p1P5/N3p3/P2pP1P1/3N1PBP/R1Q1K2R b KQ -",
"1r1q1rk1/4bp1p/2n1b3/p1P2p2/N3p3/P2pP1P1/3N1PBP/R1Q1K2R w KQ -",
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"1r1qr1k1/4bp1p/2n1b3/p1P2p2/N3p3/P2pP1P1/3N1PBP/R1Q2RK1 w - -",
"1r1qr1k1/4bp1p/2n1b3/p1P2p2/N3p3/P2pPPP1/3N2BP/R1Q2RK1 b - -",
"1r1qr1k1/4bp1p/4b3/p1P2p2/N2np3/P2pPPP1/3N2BP/R1Q2RK1 w - -",
"1r1qr1k1/4bp1p/4b3/p1P2p2/N2Pp3/P2p1PP1/3N2BP/R1Q2RK1 b - -",
"1r2r1k1/4bp1p/4b3/p1P2p2/N2qp3/P2p1PP1/3N2BP/R1Q2RK1 w - -",
"1r2r1k1/4bp1p/4b3/p1P2p2/N2qp3/P2p1PP1/3N2BP/R1Q2R1K b - -",
"1r2r1k1/4bp1p/4b3/p1P2p2/N2q4/P2ppPP1/3N2BP/R1Q2R1K w - -",
"1r2r1k1/4bp1p/4b3/p1P2p2/q3p3/P2p1PP1/3N2BP/R1Q2R1K w - -",
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"1r2r1k1/5p1p/4bb2/p1P2p2/3q4/P1NppPP1/3N2BP/R1Q2R1K w - -",
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"1r2r1k1/5p1p/4bb2/p1P2p2/3q4/P1N1pPP1/3p2BP/RNQ2R1K w - -",
"1r2r1k1/5p1p/4bb2/p1P2p2/3q4/P1N1pPP1/2Qp2BP/RN3R1K b - -",
"1r2r1k1/5p1p/5b2/p1P2p2/3q4/PbN1pPP1/2Qp2BP/RN3R1K w - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/3q4/PbN1pPP1/3p2BP/RN3R1K b - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/3q4/PbN1pPP1/6BP/RN1q1R1K w - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/3q4/Pb2pPP1/6BP/RN1N1R1K b - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/3q4/P3pPP1/6BP/RN1b1R1K w - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/3q4/P1N1pPP1/6BP/R2b1R1K b - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/3q4/P1N2PP1/4p1BP/R2b1R1K w - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/3q4/P1N2PP1/4p1BP/3R1R1K b - -",
"1r2r1k1/5p1p/5b2/p1P2Q2/8/P1q2PP1/4p1BP/3R1R1K w - -"
]
}
}