Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 O-O 8.
d4 Nf5 9. c3 Nxe5 10. Rxe5 d6 11. Re1 Re8 12. Bd3 c6 13. Qf3 g6 14. Bf4 d5 15.
Nd2 Ng7 16. Bh6 Be6 17. Re2 Nf5 18. Bf4 Bg5 19. Rae1 Nd6 20. Be5 Bh6 21. Nf1
Bf5 22. Ng3 Bxd3 23. Qxd3 Qd7 24. h4 Nc4 25. Bf6 Bg7 26. Bxg7 Kxg7 27. h5 Rxe2
28. Rxe2 Re8 29. b3 Nd6 30. Re5 f6 31. Re2 Rxe2 32. Qxe2 Nf7 33. Qf3 Qe6 34.
Qe3 Qd7 35. Ne2 Qf5 36. hxg6 hxg6 37. Qe7 Qe4 38. Qxe4 dxe4 39. c4 f5 40. Kh2
Kf6 41. Kg3 g5 42. f4 gxf4+ 43. Kxf4 Nh8 44. g3 Ng6+ 45. Ke3 b6 46. b4 Ne7 47.
Nf4 a6 48. a4 a5 49. bxa5 bxa5 50. Ne2 Nc8 51. Nc1 Nd6 52. c5 Nc4+ 53. Kf4 Nb2
54. Nb3 Nxa4 55. Nxa5 Nc3 56. Nxc6 *
Position (FEN): 8/8/2N2k2/2P2p2/3PpK2/2n3P1/8/8 b - - 0 56
Black to move.
Themes:  Endgame, Knight Endgame Mate in 1 
Puzzle rating: 1602
Best move: Nd5#