Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. b3 g6 6. Bb2 Nf6 7. d3 Bg7 8.
Nbd2 O-O 9. O-O a5 10. a4 Bg4 11. h3 Be6 12. e5 dxe5 13. Nxe5 Nd5 14. Ndc4 Qc7
15. Qf3 Ra6 16. Rfe1 Nb4 17. Qe2 Bxc4 18. Nxc4 Bxb2 19. Nxb2 e6 20. c3 Nd5 21.
c4 Ne7 22. Rad1 Nf5 23. Qe5 Qb6 24. Rb1 Nd4 25. Nd1 Qa7 26. Nc3 Qe7 27. Ne4 Ra7
28. Nf6+ Kh8 29. Nd5+ f6 30. Qxd4 cxd4 31. Nxe7 Rxe7 32. b4 axb4 33. Rxb4 c5
34. Rb5 Rc8 35. a5 e5 36. Rb6 Kg7 37. a6 Ra7 38. Rb7+ Rc7 39. Reb1 Kh6 40. Rxc7
Rxc7 41. Rb7 Rc6 42. a7 Ra6 43. Rc7 Ra5 44. g3 g5 45. Kg2 Kg6 46. Kf3 f5 47. g4
fxg4+ 48. hxg4 h5 49. gxh5+ Kxh5 50. Rh7+ Kg6 51. Rc7 Kf6 52. Ke4 Ke6 53. f3
Ra3 54. Rg7 Ra5 55. Rb7 Ra1 56. Rh7 *
Position (FEN): 8/P6R/4k3/2p1p1p1/2PpK3/3P1P2/8/r7 b - - 6 56
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 648
Best move: Re1#