Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nc3 Bb4 3. d4 exd4 4. Qxd4 Nc6 5. Qxg7 Qf6 6. Qxf6 Nxf6 7. Bd3 d5
8. Bd2 dxe4 9. Nxe4 Nxe4 10. Bxb4 Nxb4 11. Bxe4 Be6 12. a3 Nd5 13. O-O-O O-O-O
14. g3 f5 15. Bg2 Nf6 16. Ne2 Ng4 17. Rxd8+ Rxd8 18. f3 Ne3 19. Bh3 Kb8 20. Nf4
Bd7 21. Re1 Nc4 22. Re7 Nd6 23. Rxh7 Bc6 24. Ne6 Re8 25. Nd4 Bd5 26. b3 b6 27.
c4 Bb7 28. Kd2 c5 29. Nxf5 Nxf5 30. Bxf5 Bxf3 31. Bd3 Rd8 32. Ke3 Bg4 33. Rg7
Re8+ 34. Be4 Bf5 35. Rb7+ Kc8 36. Rxa7 Rxe4+ 37. Kf3 Rd4 38. h4 Kb8 39. Rf7
Bg4+ 40. Ke3 Bd1 41. Rf6 Ka7 42. h5 Bxh5 43. b4 Rxc4 44. b5 Rc3+ 45. Ke4 Rxg3
46. Kd5 Rxa3 47. Kc6 Bf3+ 48. Kc7 Bb7 49. Rxb6 Bf3 50. Rd6 Rb3 *
Position (FEN): 8/k1K5/3R4/1Pp5/8/1r3b2/8/8 w - - 3 51
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1259
Best move: Ra6#