Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d4 dxe4 7. Qxe4 Nf6 8.
Qe2 Qxd4 9. Be3 Qd6 10. Rd1 Nd5 11. Nxd5 cxd5 12. Qb5+ Qc6 13. Qb3 a6 14. Bd3
Nd7 15. O-O Nc5 16. Qc3 Nxd3 17. Qxd3 Bc5 18. Bxc5 Qxc5 19. c3 O-O 20. Qg3 b5
21. Rd4 a5 22. Rg4 g6 23. Rh4 b4 24. cxb4 axb4 25. Qg5 Rfb8 26. Qh6 Qd6 27.
Qxh7+ Kf8 28. Qh6+ Ke8 29. Rc1 Rxa2 30. Rg4 Qe5 31. Rh4 Rba8 32. Rxb4 Rxb2 33.
Rxb2 Qxb2 34. Qe3 Ra1 35. Rxa1 Qxa1+ 36. Kh2 Qa5 37. Qe5 Ke7 38. Qg5+ Kd7 39.
Qf6 Qc7+ 40. g3 Kc8 41. Qh8+ Kb7 42. Qb2+ Qb6 43. Qe2 e5 44. Qxe5 Qxf2+ 45. Kh1
Qf3+ 46. Kg1 Qe4 47. Qd6 d4 48. Qd7+ Kb6 49. Qxf7 Qe3+ 50. Kg2 Qd2+ 51. Kg1
Qc1+ 52. Kg2 Qc2+ 53. Kg1 Qe4 54. Qb3+ Kc5 55. Qa3+ Kd5 56. Qa5+ Ke6 57. Qb6+
Kf5 58. Qc5+ Qe5 59. Qf8+ Ke4 60. Qa8+ Ke3 61. Qa1 Qxg3+ 62. Kh1 Qxh3+ 63. Kg1
Qg3+ 64. Kh1 Qf3+ 65. Kg1 Qf2+ 66. Kh1 Qf3+ 67. Kg1 d3 68. Qe5+ Qe4 69. Qg5+
Ke2 70. Qb5 Qe3+ 71. Kg2 g5 72. Kh2 g4 73. Kg2 Qh3+ 74. Kg1 Ke3 75. Qe5+ Kf3
76. Qf5+ Kg3 *
Position (FEN): 8/8/8/5Q2/6p1/3p2kq/8/6K1 w - - 8 77
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 918
Best move: Qf2#