Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Nxc6 bxc6 7. e5 Nh5 8.
Be2 Ng7 9. O-O Rb8 10. b3 Ne6 11. Be3 Qa5 12. Na4 Bg7 13. f4 O-O 14. Qe1 Qc7
15. Rd1 f5 16. Bc4 d5 17. exd6 exd6 18. Bxe6+ Bxe6 19. Bd4 Bd5 20. c4 Be4 21.
Qc3 Bxd4+ 22. Qxd4 d5 23. Nc5 Rbe8 24. Rf2 Re7 25. Nd3 Rfe8 26. Ne5 Rxe5 27.
fxe5 Rxe5 28. Qc5 Re6 29. cxd5 Bxd5 30. Rxd5 Re1+ 31. Rf1 Rxf1+ 32. Kxf1 Qf4+
33. Kg1 cxd5 34. Qxd5+ Kg7 35. Qd7+ Kh6 36. Qxa7 Qd2 37. Qf2 Qd1+ 38. Qf1 Qd2
39. h3 Qxa2 40. Qc4 Qa1+ 41. Kh2 Qe5+ 42. Kh1 Qe1+ 43. Kh2 Qe5+ 44. Kg1 Qe1+
45. Qf1 Qe3+ 46. Kh1 Qxb3 47. Qf4+ Kg7 48. Qe5+ Kh6 49. Qf4+ Kg7 50. Qe5+ Kf7
51. Qh8 h5 52. Qh7+ Kf6 53. Qh8+ Kg5 54. Qd8+ Kf4 55. Qd4+ Kg3 56. Qe5+ Kf2 57.
Qf4+ Ke2 58. Qg5 Qb1+ 59. Kh2 Qb8+ 60. Kh1 Qa8 61. Qxg6 Qa1+ 62. Kh2 Qe5+ 63.
Qg3 f4 64. Qf3+ Ke1 65. g3 Qb2+ 66. Qg2 fxg3+ 67. Kxg3 Qe5+ 68. Kh4 Qf4+ 69.
Kxh5 Qf5+ 70. Kh4 Qf4+ 71. Qg4 Qf6+ 72. Kg3 *
Position (FEN): 8/8/5q2/8/6Q1/6KP/8/4k3 b - - 6 72
Black to move.
Themes:  Endgame, Queen Endgame Dovetail Mate, Mate in 1 
Puzzle rating: 833
Best move: Qf2#