Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8.
exd5 cxd5 9. O-O O-O 10. h3 c6 11. Qf3 Rb8 12. Bf4 Bd6 13. b3 Qc7 14. Bxd6 Qxd6
15. Qg3 Qxg3 16. fxg3 Re8 17. Rac1 Bd7 18. Na4 Re7 19. c4 Rbe8 20. Nc5 Bc8 21.
g4 h6 22. Kf2 Kf8 23. Rfe1 Rxe1 24. Rxe1 Rxe1 25. Kxe1 Ke7 26. Kd2 Kd6 27. b4
a5 28. a3 axb4 29. axb4 Ke5 30. Ke3 Ne8 31. cxd5 cxd5 32. b5 Nd6 33. b6 d4+ 34.
Kd2 Kd5 35. Nb3 Kc6 36. Nxd4+ Kxb6 37. Ke3 Kc5 38. Nf5 Bxf5 39. Bxf5 Kd5 40.
Kf4 g5+ 41. Kf3 Ke5 42. Bd3 Kd4 43. Bh7 Nc4 44. Bg8 Ne5+ 45. Kg3 Ke4 46. Bh7+
Ke3 47. Bf5 Ke2 48. Bh7 f6 49. Be4 Nc4 50. Bf3+ Ke1 51. Bd5 Ne3 52. Bf3 *
Position (FEN): 8/8/5p1p/6p1/6P1/4nBKP/6P1/4k3 b - - 7 52
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1145
Best move: Nf1#