Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Nc3 g6 6. g3 Bg7 7. Bg2 O-O 8.
O-O Nxd4 9. Qxd4 d6 10. Bg5 Be6 11. Qd3 Rb8 12. Rac1 Qa5 13. Bd2 Qh5 14. b3 a6
15. Nd5 Bxd5 16. cxd5 Rfc8 17. h3 Qf5 18. e4 Qd7 19. Kh2 Rxc1 20. Rxc1 Rc8 21.
Re1 Qd8 22. f4 Nd7 23. h4 Qc7 24. Rc1 Qb8 25. Rxc8+ Qxc8 26. Bh3 Qc7 27. h5 Nf6
28. hxg6 hxg6 29. Kg2 Nd7 30. Kf3 Nf6 31. Bc3 Qc5 32. Qd4 Qb5 33. Qc4 Qb6 34.
Bd4 Qa5 35. Qc2 Qe1 36. Bc3 Qh1+ 37. Qg2 Qb1 38. Qe2 Nh7 39. Bxg7 Kxg7 40. Kg2
Nf6 41. Kf3 Ne8 42. Bg2 Nf6 43. Kf2 Nh7 44. e5 a5 45. Be4 Qa1 46. e6 f5 47. Bf3
Nf6 48. Qd2 Ne4+ 49. Bxe4 fxe4 50. Ke3 Qb1 51. Qd4+ Kh7 52. Qxe4 Qxa2 53. Qd3
Qg2 54. Kd4 Qf2+ 55. Kc4 *
Position (FEN): 8/1p2p2k/3pP1p1/p2P4/2K2P2/1P1Q2P1/5q2/8 b - - 5 55
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 966
Best move: Qc5#