Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nxd4 5. Qxd4 e6 6. Nc3 a6 7. Be3 Nf6 8.
e5 Ng8 9. O-O-O Qe7 10. Na4 Qb4 11. Qxb4 Bxb4 12. a3 Ba5 13. Bc5 Bc7 14. f4 Ne7
15. Bxe7 Kxe7 16. Nc5 Rd8 17. Bd3 Bb6 18. Ne4 Bc7 19. Ng5 h6 20. Nf3 Kf8 21. g4
d6 22. Rhe1 dxe5 23. Nxe5 Bxe5 24. Rxe5 Rd5 25. Rxd5 exd5 26. f5 Bd7 27. Be2
Bc6 28. b4 Re8 29. Kd2 d4 30. Bc4 Bf3 31. Rg1 b5 32. Bd3 Be4 33. h4 Bxd3 34.
cxd3 Re3 35. g5 h5 36. g6 Rf3 37. Rg5 f6 38. Rxh5 Ke7 39. Rh7 Rxf5 40. Rxg7+
Ke6 41. Ra7 Rf2+ 42. Ke1 Rg2 43. Rxa6+ Kf5 44. Rb6 Kxg6 45. Rxb5 Rh2 46. h5+
Kg7 47. a4 Kh6 48. a5 Rb2 49. a6 Ra2 50. Rb6 Kxh5 51. b5 Kg5 52. Rd6 f5 53.
Rxd4 f4 54. Rd8 Kg4 55. Rg8+ Kf3 56. Rg7 Ke3 57. Kd1 Kxd3 58. a7 *
Position (FEN): 8/P5R1/8/1P6/5p2/3k4/r7/3K4 b - - 0 58
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1216
Best move: Ra1#