Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d3 e5 6. Nbd2 Bd6 7. e4 d4 8. Nc4
Bc7 9. Nh4 b5 10. Nd2 O-O 11. Nb3 c4 12. Nd2 Be6 13. Nf5 cxd3 14. cxd3 Ne7 15.
Nxe7+ Qxe7 16. Nb3 a5 17. f4 a4 18. fxe5 Bxe5 19. Nd2 Rfc8 20. Nf3 Nd7 21. Bg5
f6 22. Bf4 Qd6 23. Qd2 Rc7 24. Bxe5 Nxe5 25. Nh4 Rac8 26. Rfc1 Rxc1+ 27. Rxc1
Rxc1+ 28. Qxc1 Nxd3 29. Qd2 Ne5 30. a3 Nc4 31. Qc2 d3 32. Qd1 Nxb2 33. Qd2 Nc4
34. Qd1 d2 35. Nf3 Bg4 36. Kf2 Bxf3 37. Bxf3 Nb2 38. Qc2 d1=Q 39. Bxd1 Nxd1+
40. Ke1 Ne3 41. Qc8+ Kf7 42. Qb7+ Kg6 43. Qxb5 Qd1+ 44. Kf2 Qd2+ 45. Kf3 Nc2
46. Qf5+ Kf7 47. Qh5+ Kf8 48. Qc5+ Kf7 49. Qh5+ Ke7 50. Qc5+ Kf7 51. Qh5+ Kf8
52. Qc5+ Ke8 53. Qc6+ Kd8 54. Qb6+ Kd7 55. Qa7+ Ke6 56. Qb6+ Qd6 57. Qa5 Qxa3+
58. Kg4 Ne3+ 59. Kh4 Kf7 60. Qc7+ Kg6 61. Qc8 Qe7 62. g4 f5+ 63. Kg3 Nxg4 64.
exf5+ Kh6 65. Kxg4 Qg5+ 66. Kf3 Qh5+ 67. Kg2 Qe2+ 68. Kg3 a3 69. Qc1+ Kh5 70.
Qxa3 Qe1+ 71. Kg2 Qe2+ 72. Kh1 *
Position (FEN): 8/6pp/8/5P1k/8/Q7/4q2P/7K b - - 4 72
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1115
Best move: Qf1#