Chess puzzle (Checkmate)
Moves: 1. b4 c6 2. Bb2 Qb6 3. a3 d5 4. e3 a5 5. c3 Bf5 6. d4 e6 7. Bd3 Bxd3 8. Qxd3
Nf6 9. Ne2 Be7 10. O-O O-O 11. Nd2 Qc7 12. c4 axb4 13. axb4 Rxa1 14. Rxa1 Bxb4
15. cxd5 exd5 16. Nf3 Nbd7 17. Qb3 Bd6 18. Ra7 Rb8 19. Bc3 Qb6 20. Qa2 Qc7 21.
Ba5 Qc8 22. h3 Ne4 23. Be1 Nb6 24. Nc3 f5 25. Na4 Nc4 26. Qb3 b5 27. Nc3 Ra8
28. Rxa8 Qxa8 29. Nxe4 fxe4 30. Nd2 Qa3 31. Qxa3 Nxa3 32. Nb3 Nc4 33. Kf1 Kf7
34. Ke2 Ke6 35. f4 exf3+ 36. gxf3 Bc7 37. Bc3 Bd6 38. Kd3 Nb6 39. e4 Be7 40. e5
Nd7 41. Na5 Nb8 42. f4 Bd8 43. Nb3 Bb6 44. Ke3 Nd7 45. Kf3 g6 46. Kg4 Bd8 47.
Bb4 h5+ 48. Kf3 Bh4 49. Na5 Be7 50. Nxc6 Bxb4 51. Nxb4 Kf5 52. Nc6 Nf8 53. Ke3
Ne6 *
Position (FEN): 8/8/2N1n1p1/1p1pPk1p/3P1P2/4K2P/8/8 w - - 5 54
White to move.
Themes:  Endgame, Knight Endgame Mate in 1 
Puzzle rating: 825
Best move: Ne7#