Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. c3 Nc6 6. Bf4 g6 7. Nf3 Bf5 8. O-O
e6 9. Re1 Bd6 10. Bxd6 Qxd6 11. Bf1 Ne4 12. Nbd2 h5 13. Ne5 h4 14. f3 Nxd2 15.
Qxd2 Nxe5 16. Rxe5 f6 17. Bb5+ Kf7 18. Re3 g5 19. Rae1 a6 20. Bd3 Rae8 21. Bxf5
exf5 22. Qd3 Qd7 23. Rxe8 Rxe8 24. Rxe8 Kxe8 25. h3 Kf7 26. Kf2 b5 27. b3 Kg6
28. c4 bxc4 29. bxc4 dxc4 30. Qxc4 Qd6 31. d5 Kf7 32. Ke3 Ke7 33. Qb3 Qc5+ 34.
Kd3 Kd6 35. Qb8+ Kxd5 36. Qd8+ Qd6 37. Qa5+ Ke6+ 38. Ke2 Qc6 39. Qd8 Qb5+ 40.
Ke1 Qb1+ 41. Kf2 Qxa2+ 42. Kg1 Qa1+ 43. Kh2 Qe5+ 44. Kh1 Qe1+ 45. Kh2 Qe5+ 46.
Kh1 Qd6 47. Qe8+ Kd5 48. Qf7+ Kd4 49. Qb3 a5 50. Qd1+ Kc5 51. Qc2+ Kb6 52. Qxf5
Qd1+ 53. Kh2 Qd6+ 54. Kh1 a4 55. Qb1+ Ka5 56. Qb7 Qd1+ 57. Kh2 Qd6+ 58. Kh1 a3
59. Qa7+ Kb4 60. Qb7+ Kc3 61. Qc8+ Kb2 62. Qb7+ Kc1 63. Qc8+ Kd2 64. Qa6 Qd3
65. Qa5+ Ke2 66. Kh2 Qd6+ 67. Kh1 Kf2 68. Qa7+ Kf1 69. Qe3 Qd1 70. Qxa3 Kf2+
71. Kh2 *
Position (FEN): 8/8/5p2/6p1/7p/Q4P1P/5kPK/3q4 b - - 2 71
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 921
Best move: Qg1#