Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. b3 c5 3. Bb2 e6 4. d4 d5 5. e3 Nc6 6. Nbd2 cxd4 7. exd4 Bb4 8. a3
Ba5 9. b4 Bc7 10. Bd3 Qd6 11. O-O Ng4 12. h3 Nh2 13. Re1 Nxf3+ 14. Nxf3 O-O 15.
c4 Ne7 16. c5 Qd7 17. Ne5 Qd8 18. Qh5 g6 19. Qf3 Nf5 20. Bxf5 exf5 21. Bc1 f6
22. Nd3 g5 23. h4 g4 24. Qe2 Bd7 25. Bh6 Re8 26. Qc2 Bb8 27. Nf4 Kh8 28. Nxd5
Bc6 29. Rxe8+ Qxe8 30. Nxf6 Qg6 31. Bg5 h6 32. Bxh6 Qxf6 33. Bg5 Qg6 34. Re1
Be4 35. Qc4 Bc7 36. d5 Be5 37. d6 Rc8 38. Qb5 Bc6 39. Qc4 Bf6 40. Qe6 Rf8 41.
d7 Kg7 42. Bxf6+ Qxf6 43. Qxf6+ Kxf6 44. Re8 Rxe8 45. dxe8=Q Bxe8 46. Kf1 Ke5
47. Ke1 Kd4 48. Kd2 Bc6 49. g3 a6 50. h5 Bd5 51. h6 Bg8 52. Kc2 Bh7 53. Kb3 Ke4
54. b5 axb5 55. Kb4 Kf3 56. Kxb5 Kxf2 57. Kb6 Kxg3 58. Kxb7 f4 59. c6 Be4 60.
Kb6 f3 61. c7 Bf5 62. h7 f2 63. h8=Q f1=Q 64. Qc3+ Bd3 65. c8=Q Qb1+ 66. Ka5 *
Position (FEN): 2Q5/8/8/K7/6p1/P1Qb2k1/8/1q6 b - - 2 66
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 903
Best move: Qb5#