Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 d5 3. Nxe5 Bd6 4. d4 dxe4 5. Bc4 Bxe5 6. dxe5 Qxd1+ 7. Kxd1 Nc6
8. Bf4 Nge7 9. Nc3 Bf5 10. Bb5 O-O-O+ 11. Ke1 Ng6 12. Bxc6 Nxf4 13. Bxe4 Bxe4
14. Nxe4 Nxg2+ 15. Kf1 Nf4 16. Re1 Rhe8 17. Ng5 Re7 18. Rg1 h6 19. Nf3 Ne6 20.
Rg4 Red7 21. Ra4 a6 22. Ke2 Rd5 23. c3 g5 24. h3 Nf4+ 25. Ke3 Rb5 26. Rb1 f5
27. exf6 Re8+ 28. Re4 Rf8 29. Nd4 Rb6 30. h4 Rbxf6 31. hxg5 hxg5 32. f3 c5 33.
Nb3 Nd5+ 34. Kd3 Rxf3+ 35. Kc4 Nf6 36. Re5 Nd7 37. Rxg5 b5+ 38. Kd5 R3f5+ 39.
Rxf5 Rxf5+ 40. Ke6 Re5+ 41. Kd6 Rh5 42. Rg1 Rh6+ 43. Kd5 Rh5+ 44. Ke6 Rh6+ 45.
Kf5 Rh2 46. Rg8+ Kc7 47. Rg7 Kd6 48. Rg6+ Kc7 49. Rxa6 Rxb2 50. Ra7+ Kc6 51.
Ke6 Nb6 *
Position (FEN): 8/R7/1nk1K3/1pp5/8/1NP5/Pr6/8 w - - 4 52
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1090
Best move: Na5#