Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 c5 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. Nf3 Qa4
8. Nc3 Qd7 9. Nd5 Nf6 10. O-O Nxd5 11. exd5 Be7 12. Re1 O-O 13. Qe2 Re8 14. c4
Na6 15. Bg5 Bxg5 16. Qd3 Be7 17. a3 Rab8 18. Re2 Nc7 19. Rae1 a6 20. Re4 b5 21.
cxb5 axb5 22. Qe2 Nxd5 23. Nh4 g6 24. Qd3 Bxh4 25. Qxd5 Be7 26. Qd3 d5 27. Re5
d4 28. Qe4 Kf8 29. Rd5 Qb7 30. Rd7 Qxe4 31. Rxe4 d3 32. Rxd3 c4 33. Rc3 Rbd8
34. g3 f5 35. Re5 Bf6 36. Rxe8+ Rxe8 37. Rc2 Re4 38. f3 Rd4 39. Kf2 Rd1 40. h4
Rb1 41. a4 bxa4 42. Rxc4 Rxb2+ 43. Ke3 a3 44. Rc8+ Kf7 45. Rc7+ Be7 46. Ra7 a2
47. Kd3 Ke6 48. f4 Ba3 49. Rxa3 Rg2 50. Ra6+ Kf7 51. Ra7+ Kg8 52. Kd4 Rxg3 53.
Rxa2 Rg4 54. Ke5 Rxh4 55. Kf6 Rxf4 *
Position (FEN): 6k1/7p/5Kp1/5p2/5r2/8/R7/8 w - - 0 56
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 638
Best move: Ra8#