Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 a6 5. c3 h6 6. h3 Bd6 7. Bd3 Bxf4 8. exf4
O-O 9. Nbd2 Nbd7 10. O-O c5 11. Re1 cxd4 12. Nxd4 Re8 13. N2f3 Nc5 14. Bc2 Qc7
15. Qd2 Nce4 16. Qc1 Bd7 17. g3 Rac8 18. Bxe4 Nxe4 19. Nd2 e5 20. fxe5 Rxe5 21.
f4 Rh5 22. Kg2 Bxh3+ 23. Kf3 Qd7 24. Nxe4 Qg4+ 25. Kf2 dxe4 26. Qd1 Qxd1 27.
Raxd1 Bg4 28. Rd2 Rh2+ 29. Ke3 Rh3 30. Rg1 Rc5 31. Kxe4 f5+ 32. Kd3 h5 33. Kc2
h4 34. Ne6 Rc8 35. Ng5 Rxg3 36. Rxg3 hxg3 37. Rg2 Re8 38. Rxg3 Re2+ 39. Kb3 Rf2
40. Ne6 Kf7 41. Nd8+ Kf6 42. Nxb7 Rxf4 43. Nc5 Bd1+ 44. Ka3 g5 45. b4 Rc4 46.
Nxa6 f4 47. Rg1 Be2 48. Kb2 Re4 49. Nc5 Re5 50. Nd7+ Kf5 51. Nxe5 Kxe5 52.
Rxg5+ Ke4 53. Rg8 Ke3 54. a4 f3 55. Rf8 f2 56. Rxf2 Kxf2 57. b5 Ke3 58. Kb3 Ke4
59. Kb4 Kd5 60. a5 Kd6 61. c4 Kc7 62. Kc3 Bf1 63. Kd4 Kb7 64. Kc5 Kc7 65. a6
Kb8 66. b6 Bg2 67. Kb5 Bf1 68. Kb4 Be2 69. Kc3 Bf1 70. Kd4 Be2 71. Kd5 Bf1 72.
Kd4 Be2 73. Kc5 Bf1 74. b7 Bd3 75. Kb6 Bxc4 *
Position (FEN): 1k6/1P6/PK6/8/2b5/8/8/8 w - - 0 76
White to move.
Themes: Advanced Pawn Bishop Endgame, Endgame Mate in 1 
Puzzle rating: 508
Best move: a7#