[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. Nc3 d5 2. d4 Nf6 3. Nf3 Nc6 4. Bg5 Bf5 5. Bxf6 exf6 6. Nh4 Be6 7. e3 f5 8. Nf3 f4 9. Bd3 fxe3 10. fxe3 Bc5 11. O-O Bb4 12. a3 Bd6 13. e4 dxe4

[Assistant] Nxe4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r1b3r1/1p6/pq1b1k1p/3p1p2/3p1N2/1BPQn3/PP4PP/R3R2K w - - 1 24

[Assistant] Qxe3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nxc6 bxc6 6. Bd3 Nf6 7. O-O Be7 8. c4 O-O 9. Nc3 Rb8 10. Be3 Rxb2 11. Bxa7 Qa5 12. Qc1 Rb7 13. Be3 d5 14. exd5 cxd5 15. cxd5 Nxd5 16. Nxd5 Qxd5 17. Qc2 Rd7 18. Bxh7+ Kh8 19. Bf5 Rdd8 20. Be4 Qe6 21. Rfb1 Ba6 22. Rb6 Qc4 23. Qxc4 Bxc4 24. a4 Rb8 25. a5 f5 26. Rxb8 Rxb8 27. Bxf5 Bb4 28. Be4 Bc3 29. Rc1 Rb3 30. Bd2 Bxd2

[Assistant] Rxc4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 d5 2. Nc3 c6 3. e4 dxe4 4. f3 Nf6 5. Bc4 exf3 6. Nxf3 e6 7. Ne5 c5 8. O-O Qxd4+ 9. Qxd4 cxd4 10. Nb5 Na6 11. Kh1 Bc5 12. Bg5 Be7 13. Nxd4 O-O 14. Rae1 Nc5 15. c3 h6 16. Bh4 Ncd7 17. Nd3 a6 18. Nxe6 fxe6 19. Rxe6 b5 20. Bb3 Nc5 21. Nxc5 Bxc5 22. Rexf6+ Be6 23. Rxf8+ Rxf8 24. Bxe6+ Kh7 25. Rxf8 Bxf8 26. Bf2 g5 27. Bd5 Kg7

[Assistant] Be4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. Nf3 e5 2. d4 e4 3. Nfd2 d5 4. e3 c6 5. c4 Nf6 6. Nc3 Be6 7. Qb3 Be7 8. Qxb7

[Assistant] Nbd7


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bf5 5. O-O e6 6. Qb3 Qb6 7. cxd5 exd5 8. d3 Nbd7 9. Nbd2 Bd6 10. Re1 O-O 11. e4 dxe4 12. dxe4 Bg4 13. e5 Nxe5 14. Nxe5 Rfe8 15. Ndc4 Qc5 16. Be3 Qb5 17. Nxd6 Rxe5 18. Nxb5 cxb5 19. Bf4 Rc5 20. Bxb7 Rd8 21. Bg2 h6 22. h3 Be6

[Assistant] Qb4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. b3 c5 2. Bb2 Nc6 3. Nf3 b6 4. e3 Bb7 5. d4

[Assistant] Nf6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nc6 5. Bd3 Bg4 6. c3 Bd6 7. h3 Bh5 8. Qe2+ Nge7 9. Bg5 f6 10. Be3 Qd7 11. Nbd2 O-O-O 12. O-O-O g5 13. g4 Bg6 14. Nb3 h5 15. Rhg1 hxg4 16. hxg4 Rh3 17. Nfd2 Rdh8 18. Nc5 Bxc5 19. dxc5 Ne5 20. Bxg6

[Assistant] N7xg6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. g3 Nf6 2. Bg2 g6 3. Nf3 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. Nc3 dxc4 8. Re1 Bf5 9. e4 Bg4 10. h3 Bxf3 11. Bxf3 Nbd7 12. Be2 e6 13. Bxc4 Nb6 14. Bf1 Nfd7 15. Bf4 e5 16. Be3 exd4 17. Bxd4 Nf6

[Assistant] a4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 8/1b1kq3/pQn1p3/1p1pP2r/1P6/P7/6PP/3R2K1 w - - 0 32

[Assistant] Qxb7+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 8/6p1/4p3/2K1p3/1P5p/7P/4kPP1/8 b - - 2 36

[Assistant] Kxf2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 g6 2. e4 Bg7 3. Nc3 Nc6 4. Nf3 d6 5. d5 Ne5 6. Nd4 c5 7. Nde2 Nc4 8. f4 Nf6 9. b3 Nb6 10. Bd2 O-O 11. a4 e6 12. a5 Nbd7 13. dxe6 fxe6 14. Ng3 d5 15. Bd3 Qc7 16. O-O c4 17. bxc4 dxc4 18. Be2 Rb8 19. e5 Nd5 20. Nge4 Nc5 21. Nxd5 exd5 22. Nd6 Be6 23. Be3 b5 24. Bd4 Ne4 25. c3 Nxd6 26. exd6 Qxd6 27. Bf3 Bxd4+ 28. Qxd4 Rxf4 29. Qxa7 Rbf8 30. a6 d4 31. cxd4 Bd5 32. Qc5 Qxc5 33. dxc5 Bxf3 34. Rxf3 Rxf3 35. gxf3 c3 36. a7 Ra8 37. c6 c2 38. Rc1 Rxa7 39. Rxc2 Rc7 40. Kf2 Kf7 41. Rc5 Ke6 42. Ke3 b4 43. Rb5 Rxc6 44. Rxb4 Rc2 45. h4 h5 46. Rb6+ Kf5 47. Rb5+ Kf6 48. Kf4

[Assistant] Rc4+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. f4 d5 3. Nf3 dxe4 4. Ng1 Nf6 5. Ne2 Bg4 6. Nbc3 h5 7. h3 Bf5 8. Ng3 Qd7

[Assistant] Bb5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 1k4r1/p1p4p/1p2Qp2/2q3r1/8/4N3/P1P2P1P/1R2RK2 b - - 2 25

[Assistant] Rg1+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r4rk1/p1p3pp/2p3N1/8/4p1b1/6b1/PPP2PPP/R2QR1K1 b - - 0 16

[Assistant] Bxf2+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e5 2. d4 d6 3. dxe5 Nc6 4. exd6 Bxd6 5. Nc3 Nf6 6. Nf3 Qe7 7. Bb5 Bd7 8. O-O O-O-O

[Assistant] Bxc6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 b5 2. c3 a6 3. Nf3 Bb7 4. g3 Bxf3 5. Bg2 Bxg2 6. Rg1 Bb7 7. Bf4 e6 8. f3 Bd6 9. Bxd6 cxd6 10. e4 Nf6 11. Nd2 Nc6 12. Qc2 h5 13. f4 h4 14. O-O-O Ng4 15. f5 Ne3 16. Qd3 Nxd1 17. Kxd1 Qg5 18. Nf3 Qg4 19. Kc2 Rc8

[Assistant] fxe6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 d5 2. Nf3 e6 3. e3 Ne7 4. Bd3 Ng6 5. b3 Be7 6. Bb2 Nd7 7. Nbd2 O-O 8. O-O Bf6 9. c4 c5 10. Qc2 b6 11. dxc5

[Assistant] Bxb2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. c4 c6 2. e3 d5 3. a3 dxc4 4. Qc2 Nf6 5. Bxc4 e5 6. Nf3 Be7 7. Nxe5 O-O 8. Nf3

[Assistant] Nbd7


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. d3 e6 5. e4 d5 6. Nbd2 dxe4 7. dxe4 Nxe4 8. O-O Nxd2 9. Bxd2 Be7 10. Qe2 O-O 11. Rad1 c5 12. Bc3 Qc8 13. Qe5

[Assistant] Bf6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 2rq1rk1/pp4pp/2nb4/2p1p3/Q7/2P1PN2/PP3PPP/R1BR2K1 b - - 4 12

[Assistant] e4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d3 d5 2. c3 Nf6 3. Nd2 e6 4. Qc2 Be7 5. e4 O-O 6. Ngf3 dxe4 7. dxe4 b6 8. Bd3 Bb7 9. e5 Nfd7 10. Bxh7+ Kh8 11. Be4

[Assistant] g6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 2r2r2/5k1P/4pp2/2bpB3/5P2/6Q1/PP1qN3/1K5R w - - 2 30

[Assistant] f5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 4r1k1/2Q2pbp/6p1/8/1B2p3/7q/P4P2/3R1RK1 b - - 0 26

[Assistant] Be5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 d5 2. Nf3 Nf6 3. Bg5 c6 4. Bxf6 gxf6 5. e3 Qb6 6. c3 Qxb2 7. Nbd2 Qxc3 8. Be2 Rg8 9. O-O Bh3 10. Nh4 Nd7 11. Rb1 Rb8 12. Rb3 Qa5 13. Bd3 Bg4 14. Qc2 h5 15. f3 Be6 16. Bf5 Bxf5 17. Nxf5 e6 18. Nh4 f5 19. f4 Be7 20. Nhf3 b5 21. Rc1 Rc8 22. Nf1 a6 23. Rc3 Nb8 24. Ne5 Bd6 25. Nxc6 Nxc6 26. Rxc6 Rxc6 27. Qxc6+ Ke7 28. Qb7+ Kf6 29. Rc6 Qa3 30. Rxa6 Qb4 31. Ra7 Rg7 32. a3 Qe1 33. Qxb5 h4 34. h3

[Assistant] Qa1


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. d4 cxd4 3. c3 e5 4. cxd4 exd4 5. Nf3 Nc6 6. Nxd4 Bc5 7. Nb3 Bb4+ 8. Bd2 Qe7 9. Bd3 Nf6 10. O-O d6 11. Nc3 Bg4 12. Qe1 O-O 13. f3 Bh5 14. Kh1 Rad8 15. Qg3 Rfe8 16. Rae1 Bg6 17. Bg5 h6 18. Bh4 Bxc3 19. bxc3 Qe5 20. Nd4 Nxd4 21. cxd4 Qxd4 22. Rd1 Qe5 23. f4 Qc5

[Assistant] Bxf6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 6k1/5p2/6p1/3p1rRp/8/3K4/P1P5/8 w - - 2 32

[Assistant] Rxf5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 1kr5/p5p1/Qp4P1/3R3p/1qn1p3/1N6/P4PP1/3K4 w - - 3 33

[Assistant] Rd7


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. f4 d5 2. Nf3 c5 3. g3 d4 4. Bg2 Nc6 5. O-O Nf6 6. e4 dxe3 7. dxe3 Qxd1 8. Rxd1 e6 9. c4 Be7 10. Nc3 O-O 11. e4 a6 12. h3 Rd8 13. Be3 b6 14. e5 Ne8 15. Nd2 Bb7 16. Nde4 Rab8 17. h4 Nd4 18. Bxd4 cxd4 19. Na4 Bxe4 20. Bxe4 Bc5 21. b3 a5 22. Rd3 g6 23. Kg2 Ng7 24. Re1

[Assistant] Kf8


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Qd2 Qa5 11. Rc1 b6 12. b3 Bb7 13. Nd5 Qxd2+ 14. Kxd2 Rc8 15. Bd3 d6 16. h4 Nd4 17. h5 e6 18. h6 Be5 19. f4 exd5 20. fxe5 dxe5 21. cxd5 Ke7 22. Rhf1 Rxc1 23. Rxc1 Rc8 24. Rf1 f6 25. g4 g5 26. Bxd4 exd4 27. Bc4 Rf8 28. Kd3 Bc8 29. Rg1 a6 30. a4 Kd6 31. Kxd4 a5 32. Bd3 Rg8 33. Be2 Rg6 34. Rh1 Bd7 35. Bf3 Rg8 36. Re1 Re8 37. Rc1 Rg8 38. Re1 Re8 39. Bd1 Bc8 40. Rf1 Rf8 41. Rxf6+ Rxf6 42. e5+ Ke7 43. exf6+ Kxf6 44. Bc2 Bxg4 45. Bxh7 Bd1 46. Be4 Bxb3 47. h7

[Assistant] Kg7


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 c5 2. c3 cxd4 3. cxd4 d5 4. Nc3 g6 5. e4 Bg7 6. exd5

[Assistant] Nf6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 6k1/7p/pp2P1p1/8/1PRp4/4n1P1/1P5r/1K2R3 b - - 0 33

[Assistant] Nxc4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Qg4 O-O 8. Bd3 f5 9. exf6 Rxf6 10. Bg5 Rf7 11. Qh5 g6 12. Qh4 c4

[Assistant] Be2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 d6 2. Nf3 g6 3. Bg5 f6 4. Bh4 h5 5. e3 g5 6. Bg3 h4 7. Nxh4 gxh4 8. Bf4 Nh6 9. Bxh6 Bxh6 10. Bd3 Nc6 11. Bg6+ Kf8 12. Bh5 Be6 13. Bf3 Bf7 14. d5 e5 15. dxc6 bxc6 16. Bxc6 Rb8 17. Bd5 Rxb2 18. Bxf7 Kxf7 19. Nd2 Rb7 20. O-O Qb8 21. Qh5+ Kg7 22. Qxh4 Qe8 23. Qg3+ Qg6 24. Qf3 Bg5 25. Qxb7 Qh5 26. Qxc7+ Kg6 27. Nf3 Bh4 28. Qxd6 Bg5 29. Qe6 Qh6 30. e4 Bf4 31. Qf5+ Kg7 32. g3 Qh3 33. Qxh3 Rxh3

[Assistant] Kg2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 e6 5. Nf3 dxc4 6. e4 h6 7. Bh4 b5 8. a4 b4 9. Nb1 Be7 10. Bxf6 Bxf6 11. Bxc4 c5 12. e5 Be7 13. O-O Nc6 14. d5 exd5 15. Bxd5 Bb7 16. e6 fxe6 17. Bxe6 Qxd1 18. Rfxd1 Rad8 19. Nbd2 Rd6 20. Bc4 Nd4 21. Nb3 Nxf3+ 22. gxf3 Bxf3 23. Rxd6 Bxd6 24. Re1+ Kd7 25. Re3 Bc6 26. Rd3 Kc7 27. a5 Re8 28. Kf1 Re5 29. f3 Rf5 30. Kf2 Bxh2 31. Be6 Rf6

[Assistant] Bg4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 c5 2. Nf3 Nf6 3. d5 d6 4. c4 b5 5. cxb5 a6 6. Nc3 g6 7. bxa6 Bg7 8. e4 Bxa6 9. Bxa6 Nxa6 10. O-O O-O 11. a4 Ng4 12. h3 Ne5 13. Nxe5 Bxe5 14. Re1 Nb4 15. Bd2 Nd3 16. Qc2 Nxe1 17. Rxe1 Qb6 18. b3 Rfb8 19. Nb5 Qd8 20. Qc4 Bg7 21. g3 Qd7 22. Kg2 Rb6 23. f4 e6 24. Bc3 Rab8 25. Bxg7 Kxg7 26. dxe6 Qxe6 27. Qxe6 fxe6 28. Rd1 Rd8 29. Kf3 Kf7 30. Ke3 Ke7 31. Kd3 d5 32. Ke3 Rc8 33. exd5 c4 34. d6+ Kd7 35. bxc4 Rxc4 36. Rd4 Rxd4 37. Kxd4 h5 38. Kc5 Rc6+ 39. Kb4 Rc1 40. a5 Rb1+ 41. Kc5 Rc1+ 42. Kb6 Rb1 43. a6 Rb3

[Assistant] a7


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 e5 2. Nf3 e4 3. Nfd2 d5 4. e3 Nf6 5. c4 Be7 6. Nc3 c6 7. b3 O-O 8. a3 Bg4 9. Be2 Bxe2 10. Qxe2 Nbd7 11. Bb2 Rc8 12. c5 Ne8 13. g3 f5 14. b4 g5 15. h4 g4 16. Qd1 Nef6 17. Ne2 h5 18. Nf4 Rf7 19. Qb3 Nf8 20. Nb1 Kg7 21. Nc3 Ng6 22. Nce2 Nxf4 23. Nxf4 Qd7 24. a4 Bd8 25. b5 Bc7 26. Ne2 a6 27. bxa6 bxa6 28. Bc3 Rb8 29. Qc2 Bd8 30. O-O Bc7 31. Rab1 Rff8 32. Rxb8 Rxb8 33. Rb1 Qc8 34. Rxb8 Qxb8 35. Qb2 Qxb2 36. Bxb2 Ba5 37. Bc3 Bxc3 38. Nxc3 Kf7 39. Na2 a5 40. Nc1 Ke7

[Assistant] Nb3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 5nk1/p4rp1/1p1Q4/2p2p2/2PP4/2P2PPK/P2q3P/R3R3 b - - 0 25

[Assistant] Rf6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. Bc4 Qh5 7. Qe2 e6 8. Bf4 c6 9. O-O-O Nbd7 10. h3 Bxf3 11. gxf3 Qa5 12. Kb1 O-O-O 13. Bg3 Bb4 14. Ne4 Nxe4 15. fxe4 Nf6 16. Bb3 Be7 17. c4 g6 18. Rd3 Nh5 19. Bh2 Bd6 20. e5 Bc7 21. Rhd1 Qb4 22. d5 Bb6 23. dxe6 fxe6 24. c5 Rxd3 25. Qxd3 Rd8

[Assistant] Bxe6+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 Nf6 2. Nf3 c5 3. Bf4 cxd4 4. Nxd4 d6 5. Nb3 Nc6 6. Bg3 g6 7. e3 Bg7 8. c3 O-O 9. N1d2 Be6 10. Bd3 Rc8 11. O-O a6 12. Qe2 Nh5 13. Rad1 Qd7 14. Bh4 Rfe8 15. Rfe1 Ne5

[Assistant] Be4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 4rqk1/R3n1pp/p4p2/1p1p4/8/5Q2/P4PPP/4R1K1 b - - 2 22

[Assistant] Nc8


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 6r1/ppk1n3/3b4/2p1p2r/1PPpQ3/P2P2Pq/1B3P1N/R5KR b - - 0 28

[Assistant] Rxg3+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 8/8/2p5/6p1/p1pP1k1p/2P2P2/PP2K1P1/8 b - - 1 37

[Assistant] Kg3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 1k4rr/pp3p2/2pp4/4pPq1/1PPbP2p/P1NP1Q1B/2R4P/5R1K b - - 4 25

[Assistant] Qg1+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. Nf3 e6 3. g3 Nf6 4. e5 Nd5 5. Bg2 Be7 6. O-O O-O 7. c4 Nc7 8. Nc3 a6 9. d4 cxd4 10. Nxd4 d5 11. cxd5 Nxd5 12. Nxd5 exd5 13. Be3 Nc6 14. f4 Bc5 15. Rc1 Qb6 16. Rxc5 Qxc5 17. Nf5 d4 18. Nxd4 Nxd4 19. Qxd4 Qxd4 20. Bxd4 Be6 21. Bxb7 Rab8 22. Bxa6 Ra8 23. Bb5 Rfd8 24. Bc3 Bxa2 25. f5 Rac8 26. Ra1 Bc4 27. Bxc4 Rxc4 28. Ra7 Rdc8 29. e6 R4c7 30. Ra6 fxe6 31. Rxe6 Rf8 32. g4 h5 33. h3 hxg4 34. hxg4 Rc4 35. Rg6 Rf7 36. Kg2 Rfc7 37. f6 Kh7 38. fxg7 Kg8 39. Bf6 R4c6 40. g5 Rb7 41. Rh6 Rxg7 42. Bxg7 Rc2+ 43. Kg3 Kxg7 44. Rb6 Rc5 45. g6 Rc4 46. b3 Rd4 47. Kf3 Rh4

[Assistant] b4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e6 2. d3 c5 3. Nd2 Nc6 4. Ngf3 g6 5. Be2 Bg7 6. O-O Nge7 7. c3 O-O 8. a4 d6 9. Nc4 b6 10. Qc2 Bb7 11. Re1 Rc8 12. Bf1 d5 13. Ne3 d4 14. Nc4 Qd7 15. Bf4 Ba6 16. Nce5 Qe8 17. Nc4 Qd7 18. Nfe5 Nxe5 19. Nxe5 Qd8 20. Nc4 dxc3 21. bxc3 Bxc4 22. dxc4 e5 23. Bg5 f6 24. Be3 Nc6 25. Red1 Qe7 26. Rd5 Qe6 27. Rad1 Rfd8 28. Be2 h5 29. h3 Qe7 30. R1d2 Na5 31. Qd1 Rxd5

[Assistant] Rxd5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 h6 8. Bh4 Nbd7 9. Qc2 Nh5 10. Bxe7 Qxe7 11. Nge2 Nhf6 12. O-O-O Nf8 13. Kb1 Be6 14. Rc1 O-O-O 15. Qa4 Kb8 16. b4 N8d7 17. b5 c5 18. Qa3 Rhe8 19. Na4 c4 20. Qxe7 Rxe7 21. Bc2 Ng4 22. Rcf1 f5 23. h3 Ngf6 24. Nf4 Ne4 25. Bxe4 fxe4 26. Nc3 Nf6 27. Kc2 Kc7 28. Kd2 Kd6 29. a4 Bd7 30. Nfe2 g5 31. Ng3 h5 32. h4 g4 33. f3 gxf3

[Assistant] gxf3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e5 2. d4 Nc6 3. Nf3 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qf3 Qxc6 7. Be3

[Assistant] Bxe3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 e6 2. Bf4 f5 3. e3 d5 4. g4 Nf6 5. g5 Ne4 6. h4 Bd6 7. Ne2 c5 8. c3 Nc6 9. Nd2 Nxd2 10. Qxd2

[Assistant] e5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. Nf3 e6 2. g3 d5 3. Bg2 Nf6 4. O-O Be7 5. c4 O-O 6. b3 c5 7. Bb2 Nc6 8. e3 d4 9. exd4 cxd4 10. d3 e5 11. a3 Bd6 12. b4 a6 13. Nbd2 Bg4 14. Re1 Re8 15. h3 Bh5 16. Qc2 Bg6 17. c5 Bc7 18. Nc4 Rc8 19. Re2 Qd7 20. Rae1 Re7 21. Nfxe5 Nxe5 22. Nxe5 Bxe5 23. Rxe5 Rxe5 24. Rxe5 Re8 25. Qe2 Rxe5 26. Qxe5 Ne8 27. Qxd4 Qe7 28. Qe5 Qd7 29. Bxb7 f6 30. Qd5+ Qxd5 31. Bxd5+ Kf8 32. Bc4

[Assistant] Ke7


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. b3 e5 2. Bb2 d6 3. e3 Nc6 4. g3 Nf6 5. Bg2 g6 6. Ne2 Bg7 7. O-O O-O

[Assistant] d4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 1kbr1b1r/2p5/1p1p1n2/3Pqp2/2Q5/2N3P1/1PP2P1p/R4R1K w - - 0 26

[Assistant] Ra8+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r4r2/p4k2/1p3n2/2pp4/8/1PP2q2/PKQ4R/4R3 w - - 0 28

[Assistant] Rh7+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r4rk1/pp3p2/1N1p1np1/3Ppb1p/2P4P/5P2/PP1QN1P1/K2R1n1R b - - 0 20

[Assistant] Nxd2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. b3 d5 2. Bb2 Nc6 3. e3 e5 4. f4 Nf6 5. fxe5 Nd7 6. Nf3 Be7 7. Bb5 O-O 8. O-O Nb6 9. Bxc6 bxc6 10. d3 c5 11. Nbd2 Bb7 12. Qe1 f6 13. exf6 Bxf6 14. Bxf6 Qxf6 15. Qg3 Qc3 16. Rae1 Qxc2 17. Rc1 Qxd3 18. Rxc5 Qxe3+ 19. Kh1 Qxc5 20. Re1 Qd6 21. Qg4 Qf6 22. h3 Bc8 23. Qb4 Qd6 24. Qd4 c5 25. Qh4 Bb7 26. Ng5 Qg6 27. Qg3 d4 28. Ndf3 h6 29. Qc7 hxg5 30. Qxb7 g4 31. hxg4 Qxg4 32. Re5 Rab8

[Assistant] Qe7


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r2qk2r/ppp1bppp/2np4/8/4PQ2/2NP3B/PPP2B2/2KR3R b kq - 4 14

[Assistant] Bg5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 Nf6 2. Nf3 b6 3. Bf4 Bb7 4. e3 d6 5. Bd3 Nbd7 6. O-O g6 7. h3 Bg7 8. Bh2 O-O 9. c4

[Assistant] Re8


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. b3 d5 2. Bb2 c5 3. Nf3 Nc6 4. e3 Bg4 5. a3 Nf6 6. c4 d4 7. exd4 Nxd4 8. Bxd4 cxd4 9. b4 e5 10. d3 Bd6 11. Nbd2 O-O 12. Be2 Re8 13. Qb1 e4 14. dxe4 Bf4 15. Qd3 Bxf3 16. gxf3 Nd7 17. Rg1 Ne5 18. Qb3 d3 19. Bd1 Qd4 20. Ra2 f5 21. c5+ Kh8 22. Qb2 Qd7 23. Bb3 Bxh2 24. Rg2 Bf4 25. Kf1 Qe7 26. Nc4 Qh4 27. Nd6 Qh1+ 28. Rg1 Qh3+

[Assistant] Rg2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 8/Q7/1p1rk3/7P/6n1/1P2PP2/P5P1/6K1 b - - 0 46

[Assistant] Rd1#


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. b3 c6 7. Bb2 Bf5 8. Nbd2 h6 9. Ne5 Nbd7 10. c4 g5 11. Re1 e6 12. e4 Nxe4 13. Nxe4 dxe4 14. Nxd7 Qxd7 15. Bxe4 Bxe4 16. Rxe4 Rad8 17. Qe2 Rfe8 18. Re1 a6 19. h4 Re7 20. hxg5 hxg5 21. Qh5 f5 22. R4e2 Bxd4 23. Bxd4 Qxd4 24. Qxg5+ Rg7 25. Qe3 Qxe3 26. Rxe3 f4 27. Rxe6 fxg3 28. Re8+ Rxe8 29. Rxe8+ Kf7 30. Rb8 gxf2+ 31. Kxf2 Ke6 32. Ke3 Ke5 33. Re8+ Kd6 34. Kd4 Rg2 35. a4 Rg3 36. b4 a5 37. c5+ Kc7 38. Re7+ Kc8 39. bxa5 Rg4+ 40. Re4 Rg1 41. Kc4 Kb8 42. a6 bxa6 43. Kb4 Rg5 44. Rc4 Kb7 45. Ka5

[Assistant] Rd5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. Nf3 d6 3. c3 e6 4. Bd3 Nf6 5. Bc2 Be7 6. O-O

[Assistant] O-O


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. b3 c6 2. Bb2 d5 3. Bxg7 Nf6 4. Bxh8 Nh5 5. Bb2 Bg4 6. f3 Be6 7. d3 Nf6 8. Nd2 Nfd7 9. c4 f6 10. cxd5 cxd5 11. e4 Nc6 12. exd5 Bxd5 13. Nc4 Bf7 14. Be2 e5 15. Nh3 Bb4+ 16. Kf1 Bc5 17. Ke1 b5 18. Kd2

[Assistant] bxc4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. e3 Bg4 5. Qb3

[Assistant] Qb6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r4rk1/pbp1qp1p/1p4p1/4b3/2P1N3/2B1P3/PPQ2PPP/R2R2K1 b - - 5 16

[Assistant] Bxe4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 8/8/p2k2pp/1p3p2/1P1p1P1P/K1p5/P1P2P2/2B5 b - - 1 35

[Assistant] Kd5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bf5 5. d3 h6

[Assistant] Nbd2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 3r1k2/pp5p/4KB2/8/3p4/6RP/r7/8 w - - 8 52

[Assistant] Be7+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 1kr5/3p4/r2PpQ1p/1pq4P/5P2/1R4P1/1KPR4/8 b - - 0 36

[Assistant] Qg1


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r7/5pkp/3q2b1/1Q6/1P2p1P1/PBP5/1K3P2/R7 b - - 0 46

[Assistant] Qd2+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e5 2. d4 exd4 3. Nf3 d5 4. Qxd4 dxe4 5. Qxd8+ Kxd8 6. Ng5 Be6 7. Nxe6+ fxe6 8. Nc3 Nf6 9. Bg5 Bb4 10. O-O-O+ Ke8 11. Bxf6 gxf6 12. Nxe4 Ke7 13. Bc4 Nc6 14. c3 Bd6 15. Rhe1 Ne5 16. Bxe6 Kxe6 17. f4 Rhg8 18. fxe5 fxe5 19. g3 Raf8 20. Re2 Rf3 21. Red2 Re3 22. Nxd6 cxd6 23. Rxd6+ Kf5 24. Rh6 Rg7 25. Rf1+ Ke4 26. Rh4+ Kd3 27. Rd1+ Ke2 28. Rh6 Re7 29. Rf6 Rf3 30. Rd2+ Ke3 31. Rxf3+ Kxf3 32. Kd1 e4 33. Ke1 e3 34. Re2 h5 35. c4 Rd7 36. b4 Rd4 37. Rc2 h4 38. gxh4 Rxh4 39. c5 Rxb4 40. Rc1 Rb2 41. Kf1 Rxh2 42. Kg1 Rxa2 43. c6 bxc6 44. Rxc6 Ra1+ 45. Kh2 e2 46. Rf6+ Ke4 47. Re6+ Kd3 48. Rd6+ Ke3 49. Re6+ Kf2 50. Rf6+ Ke1 51. Kg2 a5 52. Kf3 a4 53. Re6 Ra2 54. Rh6 a3 55. Ke3 Kd1 56. Rh1+ e1=Q+ 57. Rxe1+

[Assistant] Kxe1


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 5rk1/5pp1/1r1P3p/4n1qP/Q7/P3B3/1bPK1PP1/3R2NR b - - 2 23

[Assistant] Rxd6+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r1bqr1k1/pp1p1ppp/2n2n2/6B1/1bPN4/2N5/PP2BPPP/R2Q1RK1 b - - 6 10

[Assistant] Nxd4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e6 2. Nf3 d5 3. e5 Nd7 4. d4 f6 5. c3 c5 6. Bf4 cxd4 7. cxd4 Bb4+ 8. Nc3 fxe5 9. Nxe5 Nxe5 10. Bxe5 Nf6 11. Bd3 O-O 12. O-O g6 13. Rc1 Bd6 14. Re1 Bxe5 15. Rxe5 Qe7 16. h3 Qf7 17. Qd2 Bd7 18. a3 Rac8 19. Rce1 Ne8 20. R5e3 Ng7 21. Rf3 Nf5 22. Bxf5 exf5 23. Rfe3 Rfe8 24. Re5 Rxe5 25. Rxe5 Bc6 26. Qf4 Re8 27. h4 Rxe5 28. Qxe5 Qg7 29. Qxg7+ Kxg7 30. Kh2 a6 31. Kg3 Kf6 32. Kf4 h6

[Assistant] g3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 4r1k1/pp3pp1/2p3qp/3p4/4nP2/2P1P1r1/PP2RKBQ/4R3 w - - 5 34

[Assistant] Bxe4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r3k2r/pp2nppp/n3pq2/4Nb2/8/b1N2B2/P1PPQP1P/R3K2R w KQkq - 4 15

[Assistant] Qb5+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. Nf3 Nf6 2. e3 d5 3. d4 Bf5

[Assistant] Bd3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 6k1/5pbp/6q1/Q7/2P1pp2/8/PP1rBPPP/4R1K1 b - - 0 27

[Assistant] Rxe2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c3 g6 6. h3 Bg7 7. Be3 O-O 8. Qd2 a6 9. Ba4 b5 10. Bc2 d5 11. Bh6 dxe4 12. Bxg7 Kxg7

[Assistant] dxe4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be2 Bd6 7. Nf3 Bf5 8. O-O Bg6 9. c3 O-O 10. Nh4 Qc7 11. Nxg6 Bxh2+ 12. Kh1 hxg6 13. g3 Bxg3 14. fxg3 Qxg3 15. Bf3 Na6 16. Qe2 Rfe8 17. Qg2 Qd6 18. Bd2 Nc7 19. Be1 Re7 20. Bg3 Qd7

[Assistant] Rae1


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 c6 2. e3 d5 3. Nf3 Nf6 4. c4 Bg4 5. cxd5 Bxf3 6. Qxf3 cxd5 7. Nc3 e6 8. Bd3 Be7 9. O-O O-O 10. Re1 Nbd7 11. e4 dxe4 12. Nxe4 Re8 13. Bd2 Nf8 14. Rac1 Qxd4 15. Bc3 Qa4 16. Nxf6+ Bxf6 17. Bxf6 gxf6 18. Re4 Qa5 19. Rg4+ Kh8 20. b4 Qe5 21. h4 f5 22. Rg5 f6 23. Rh5 Rad8 24. Rc5 Qa1+ 25. Kh2 Re7

[Assistant] g3


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 Nf6 2. c4 e6 3. Nc3 d6 4. e4 Be7 5. e5 dxe5 6. dxe5 Qxd1+ 7. Kxd1 Ng4 8. Nh3 Nxe5 9. f4 Nec6 10. Be2 O-O 11. Kc2 Rd8 12. Be3 b6 13. b3 Ba6 14. Rad1 Nd7

[Assistant] Ne4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Rg8 7. g3 Bg4 8. Qb3 Qd5 9. Qxd5 cxd5 10. Bg2 e6 11. Nf3 Bxf3 12. Bxf3 f5 13. Bf4 Nd7 14. c4 Nf6 15. cxd5 Nxd5 16. Bxd5 exd5 17. O-O Kd7 18. Rac1 Bd6 19. Bxd6 Kxd6 20. Rc5 Rac8 21. Rfc1 Rc6 22. b4 Rgc8 23. Kg2 b6 24. Rxc6+ Rxc6 25. Rxc6+ Kxc6 26. a4 Kd6 27. Kf3 Ke6 28. Kf4 Kf6 29. f3 h6 30. h3 h5 31. h4 Ke6 32. Kg5 f4 33. Kxf4 Kf6 34. g4 Kg6 35. g5

[Assistant] f6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 c5 2. Nf3 cxd4 3. Nxd4 a6 4. Nb3 e6 5. g3 d5 6. Bg2 Nc6 7. O-O Nf6 8. c4 Be7 9. cxd5 exd5 10. Nc3 Be6 11. Bg5 d4 12. Bxf6 Bxf6 13. Ne4 O-O 14. Nxf6+

[Assistant] Qxf6


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. Nf3 O-O 10. O-O Nbd7 11. Rb1 Nb6 12. b3 Bb7 13. Nh4 Nfd7 14. Bb2 Bxc3 15. Bxc3 Rxa2 16. Qc1 f6 17. Qh6 Rf7 18. e4 Nf8 19. f4 Qa8 20. Rb2 Rxb2 21. Bxb2 Qa2 22. Rf2 Qb1+ 23. Bf1 Qxe4 24. Re2 Qxd5 25. f5 g5 26. Ng2 Qxf5 27. Ne3 Qe4 28. Qh5 Ng6 29. Ng4 Qh1+ 30. Kf2 Qf3+ 31. Ke1 Rg7 32. Bg2 Qxb3 33. Bxb7 Na4 34. Nh6+ Kf8 35. Qf3 Qb4+ 36. Kf1 Nxb2 37. Nf5 Rf7 38. Bd5 Ne5 39. Qh5 Qg4 40. Qh6+ Ke8 41. Rxe5 fxe5 42. Bxf7+ Kxf7 43. Qg7+ Ke6 44. Ne3 Qf3+ 45. Kg1 Qxe3+ 46. Kg2 Nd3 47. Kh3 Nf4+ 48. Kg4 h5+ 49. Kxg5 Kd7 50. Qf7 Ne6+ 51. Kg6 Qg5+ 52. Kh7 h4 53. Kh8 hxg3 54. Qg8 Qh6+ 55. Qh7 Qf8+ 56. Qg8 Qf6+ 57. Kh7 Ng5+ 58. Qxg5 Qxg5 59. hxg3 Ke8 60. Kh8 Kf7 61. Kh7

[Assistant] Qf4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 g6 2. c4 Bg7 3. Nc3 e6 4. e4 Ne7 5. Nf3 O-O 6. Be2

[Assistant] d5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 Nc6 6. Bc4 e6 7. O-O Nge7 8. Re1 Ng6 9. Nd5 Bc5 10. a3 O-O 11. b4 Ba7 12. Nf4 Nge5 13. Nxe5 Nxe5 14. Bb3 d6 15. Be3 Bxe3 16. Rxe3 Qe7 17. Rg3 Bd7 18. Ne2 Rfd8 19. f4 Nc6 20. Qd2 Be8 21. Qb2 e5 22. Bd5 Rac8 23. Rf1 Kh8 24. Rg4 f6

[Assistant] Qd2


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r4rk1/pp3pbp/3p2p1/3Pp1qn/3n4/PP2NN2/1BP2PB1/R2QR1K1 b - - 2 20

[Assistant] Nxf3+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r7/3p1k1p/bp2pN2/pN2Pr2/Q2P4/P5pK/1PR3P1/4q3 w - - 4 32

[Assistant] Nd6+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg4 6. h3 Bxf3 7. Qxf3 Nf6 8. O-O Bg7 9. Nd2 Nd7 10. Qe2 e5 11. a4 O-O 12. a5 Qe7 13. Nc4 Rad8 14. f4 exf4 15. Bxf4 Ne5 16. Bxe5

[Assistant] Bxe5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: r4rk1/1p4p1/p3p1Q1/2q1B3/8/2P4R/P2N1P1P/4R1K1 b - - 0 27

[Assistant] Qxf2+


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 8/8/2k2n2/p3p2P/2Pp4/2PK4/4N3/8 b - - 0 38

[Assistant] Nxh5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 2k4r/1pp5/3b4/6pp/8/4B2P/Pr3PK1/2R2R2 w - - 0 25

[Assistant] Bd4


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] FEN: 8/8/8/p7/P1P1K1pk/8/8/8 w - - 1 56

[Assistant] c5


[System] You are a chess grandmaster. Given a chess position (as a PGN move sequence or a FEN), play the best move in standard algebraic notation (SAN).

[User] 1. d4 d5 2. Nc3 Nf6 3. Bg5 Nbd7 4. a3 h6 5. Bh4 c6 6. h3 e5 7. dxe5 Nxe5 8. Bg3 Nc4 9. b3 Nxa3 10. e3 Qa5 11. Ne2 Nxc2+ 12. Qxc2 Qxa1+ 13. Qd1

[Assistant] Qxd1+