Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nf6 3. Bg5 Nbd7 4. e3 h6 5. Bf4 e6 6. h3 a6 7. Nc3 b5 8. a4 b4
9. Na2 c5 10. c3 b3 11. Nc1 c4 12. Be2 a5 13. Ne5 Bb7 14. Bh5 Nxe5 15. Bxe5 Be7
16. g4 g6 17. g5 gxh5 18. gxf6 Bxf6 19. Bf4 Qe7 20. Qxh5 Kd7 21. Ne2 Rag8 22.
Kd2 Bg5 23. Rhg1 f6 24. Bh2 e5 25. h4 Qh7 26. Rac1 Bxe3+ 27. fxe3 Qd3+ 28. Ke1
Rxg1+ 29. Bxg1 Ke6 30. Qg4+ Kd6 31. dxe5+ fxe5 32. Qg7 Rh7 33. Qf6+ Kc7 34.
Qxe5+ Kc8 35. Qe8+ Kc7 36. Bh2+ Kb6 37. Qb5+ Ka7 38. Qxa5+ Ba6 39. Qc5+ Kb7 40.
a5 Qg6 41. Qb6+ Qxb6 42. axb6 Kxb6 43. Nd4 Re7 44. Bf4 Bc8 45. Kf2 Bg4 46. Ra1
Rg7 47. Ra8 Bh3 48. Bxh6 Rg2+ 49. Kf3 Rxb2 50. Rb8+ Ka7 51. Rb4 Ra2 52. Kf4 Bf1
53. Ke5 b2 54. Bf8 Bd3 55. Bc5+ Ka8 56. Nb5 b1=Q *
Position (FEN): k7/8/8/1NBpK3/1Rp4P/2PbP3/r7/1q6 w - - 0 57
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1025
Best move: Nc7#