Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. e4 e6 6. Nge2 c6 7. d3 d5 8. cxd5
exd5 9. e5 Nfd7 10. d4 Nb6 11. O-O Re8 12. Be3 Qe7 13. b3 Bg4 14. Qd2 N8d7 15.
Bh6 Rad8 16. Bxg7 Kxg7 17. h3 Be6 18. f4 c5 19. g4 f6 20. f5 Bf7 21. e6 cxd4
22. Nxd4 Nc5 23. exf7 Kxf7 24. Rfe1 Ne4 25. Nxe4 dxe4 26. Rxe4 Qc5 27. Rxe8
Kxe8 28. Rd1 Nc8 29. Kh1 Qb6 30. Qe3+ Ne7 31. Qg1 gxf5 32. Nxf5 Rxd1 33. Qxd1
Nxf5 34. gxf5 Qf2 35. Qb1 Qb6 36. Qe4+ Kf8 37. Qxb7 Qa5 38. Bd5 Qe1+ 39. Kh2
Qe5+ 40. Kg2 Qe2+ 41. Kg3 Qe3+ 42. Kh2 Qf2+ 43. Bg2 Qf4+ 44. Kh1 Qc1+ 45. Kh2
Qf4+ 46. Kg1 Qc1+ 47. Kf2 Qd2+ 48. Kg3 Qe3+ 49. Qf3 Qe1+ 50. Qf2 Qe5+ 51. Qf4
Qe1+ 52. Kh2 Qe2 53. Qb8+ Kg7 54. Qxa7+ Kh6 55. b4 Qe5+ 56. Kh1 Qe1+ 57. Qg1
Qxb4 58. Qc1+ Kh5 59. Bf3+ Kh4 60. Kg2 h5 61. Qc2 Kg5 62. Qf2 Kh6 63. Qe3+ Kg7
64. a3 Qb2+ 65. Kg3 Qb8+ 66. Qf4 Qb3 67. Qd6 Qg8 68. Qe7+ Kh6+ 69. Kf2 Qa2+ 70.
Ke3 Qb3+ 71. Kf4 Qb8+ 72. Ke4 Qa8+ 73. Kd4 Qxf3 74. Qxf6+ Kh7 75. Qf7+ Kh8 76.
f6 Qf4+ 77. Kd5 Qg5+ 78. Ke6 Qe3+ 79. Kd7 Qd4+ 80. Ke8 Qe5+ 81. Qe7 Qb8+ 82.
Kf7 *
Position (FEN): 1q5k/4QK2/5P2/7p/8/P6P/8/8 b - - 12 82
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 899
Best move: Qg8#