Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. Nd2 Bf5 6. Ngf3 e6 7. Qb3 Qb6 8. h3
c4 9. Qxb6 axb6 10. a3 b5 11. Rc1 Nd7 12. Be2 Nb6 13. Bd1 Na4 14. Bxa4 bxa4 15.
O-O h6 16. Rfe1 Bd3 17. e4 Kd7 18. exd5 exd5 19. Ne5+ Nxe5 20. dxe5 Bc5 21. Nf3
Ke6 22. Be3 b6 23. Nd4+ Bxd4 24. Bxd4 g6 25. Rcd1 h5 26. g3 Rhg8 27. f3 Ra5 28.
Rd2 Rb5 29. g4 hxg4 30. hxg4 Rh8 31. Kg2 Ra5 32. Rf2 Raa8 33. Rh1 Rxh1 34. Kxh1
Rh8+ 35. Kg2 b5 36. Rd2 Rh7 37. Rd1 Rh8 38. Kg3 Rh7 39. Re1 Rh8 40. Bc5 Rh7 41.
Bg1 Rh8 42. Kg2 Rh7 43. Bh2 Rh8 44. Bg3 Rh7 45. Bf2 Rh8 46. Kg3 Rh7 47. f4 Be4
48. Bg1 Rh1 49. Kf2 Rh3 50. Re3 Rh1 51. Rg3 g5 52. Ke3 gxf4+ 53. Kxf4 Bg6 54.
Rg2 Rh3 55. Rg3 Rh4 56. Bd4 Rh2 57. Rf3 Rxb2 58. Kg5 Rb3 59. Rf6+ Ke7 60. Ra6
Be4 61. Kf4 Rb1 62. e6 Rf1+ 63. Kg5 fxe6 64. Be5 Kd7 65. Ra7+ Kc6 66. Re7 d4
67. Bxd4 Bd5 68. Re8 Ra1 69. Rc8+ Kd7 70. Rb8 Rxa3 71. Rxb5 Rb3 72. Ra5 a3 73.
Kf6 Be4 74. g5 Bb1 75. g6 a2 76. g7 Rb8 77. Ra7+ Kc6 78. Kxe6 Rb7 79. Rxb7 Kxb7
80. g8=Q a1=Q 81. Qe8 Qa6+ 82. Kd7 Qc6+ 83. Kd8 *
Position (FEN): 3KQ3/1k6/2q5/8/2pB4/2P5/8/1b6 b - - 5 83
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1525
Best move: Qc7#