Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. a3 Qb6 7. b4 c4 8. a4 Be7 9.
a5 Qc7 10. Be2 a6 11. O-O Na7 12. Na3 O-O-O 13. Bg5 Bb5 14. Be3 h6 15. Nd2 Bd7
16. f4 g6 17. Bf3 Bc6 18. Qe2 Nb5 19. Nxb5 Bxb5 20. g4 h5 21. gxh5 gxh5 22.
Bxh5 Nh6 23. Kh1 Nf5 24. Bf2 Rh7 25. Bg4 Rdh8 26. h3 Nh6 27. Kg2 Qd8 28. Rh1
Rg8 29. Kf3 Rhg7 30. Rag1 Kb8 31. Nf1 Bh4 32. Bxh4 Qxh4 33. Ke3 Nf5+ 34. Kd2
Qh7 35. Bxf5 Qxf5 36. Rxg7 Rxg7 37. Qf3 Ba4 38. Ne3 Qg6 39. Qe2 Qg3 40. f5 Rh7
41. fxe6 fxe6 42. Qg2 Qxg2+ 43. Nxg2 Kc7 44. Nf4 Bd7 45. Ke3 b6 46. axb6+ Kxb6
47. Kf3 a5 48. bxa5+ Kxa5 49. Rb1 Bb5 50. Kg4 Rg7+ 51. Kh5 Rg3 52. Nxe6 Rxh3+
53. Kg4 Rxc3 54. Nc7 Rb3 55. Ra1+ Kb4 *
Position (FEN): 8/2N5/8/1b1pP3/1kpP2K1/1r6/8/R7 w - - 4 56
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1093
Best move: Nxd5#