Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. f4 c5 7. c3 Nc6 8. Nf3
Nh6 9. dxc5 Bxc5 10. b4 Bb6 11. a4 a5 12. b5 Nb8 13. Ba3 Nd7 14. Nbd2 Bc5 15.
Nd4 O-O 16. N2b3 Bxa3 17. Rxa3 Qc7 18. O-O Rac8 19. Nd2 Qc5 20. Rb3 Qb6 21. Ra3
Nf5 22. g4 Nxd4 23. cxd4 f6 24. Nf3 fxe5 25. Nxe5 Nxe5 26. fxe5 Rxf1+ 27. Kxf1
Rc1+ 28. Kg2 Qc7 29. Ra2 Qc4 30. Qxc4 Rxc4 31. h3 Rxd4 32. Kf3 Rc4 33. Ke3 Re4+
34. Kd3 Rxe5 35. Rc2 Re4 36. Rc8+ Kf7 37. Rc7+ Kf6 38. Rxb7 Rxa4 39. b6 Rb4 40.
Rb8 a4 41. b7 Kg6 42. h4 h6 43. Kc3 Rb3+ 44. Kd4 a3 45. Ke5 a2 46. Ra8 a1=Q+
47. Rxa1 Rxb7 48. Ra6 Re7 49. Kd6 Rf7 50. Ke5 Rf6 51. Rd6 Kf7 52. Rd7+ Kf8 53.
g5 hxg5 54. hxg5 Rf5+ 55. Kxe6 Rxg5 *
Position (FEN): 5k2/3R2p1/4K3/3p2r1/8/8/8/8 w - - 0 56
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1388
Best move: Rd8#