Chess puzzle (Checkmate)
Moves: 1. c4 c6 2. e4 d5 3. exd5 cxd5 4. cxd5 Qxd5 5. d4 Nc6 6. Nf3 e5 7. Nc3 Bb4 8.
Bd2 Bxc3 9. Bxc3 e4 10. Ne5 Nxe5 11. dxe5 Ne7 12. Be2 Be6 13. Qxd5 Nxd5 14.
Bb5+ Bd7 15. Bxd7+ Kxd7 16. O-O-O Ke6 17. Rhe1 Rac8 18. Rxe4 Nxc3 19. bxc3
Rxc3+ 20. Kb2 Rc6 21. f4 Rhc8 22. Rd2 Rc4 23. Rxc4 Rxc4 24. g3 Rc7 25. Re2 Kf5
26. Rf2 Kg4 27. Re2 Kf3 28. Rd2 Ke3 29. Rd8 Kf2 30. Rg8 f6 31. exf6 gxf6 32.
Rf8 Kg2 33. Rxf6 Kxh2 34. g4 Kg3 35. g5 Kg4 36. Kb3 Rc6 37. Rf7 Rb6+ 38. Kc3 h5
39. gxh6 Rxh6 40. Rxb7 Rc6+ 41. Kb3 Ra6 42. Rb4 Kf5 43. a4 Re6 44. Rc4 Re3+ 45.
Kb4 Re1 46. a5 Re8 47. Kb5 Re6 48. Rc6 Re1 49. Ka6 Kxf4 50. Kxa7 Ke5 51. a6 Kd5
52. Rc2 Kd6 53. Kb8 Rb1+ 54. Kc8 Ra1 55. Kb7 Kd7 56. a7 Rb1+ 57. Ka8 Ra1 58.
Rb2 Kc8 59. Rb7 Rg1 60. Rb8+ Kc7 61. Rb7+ Kc6 62. Kb8 *
Position (FEN): 1K6/PR6/2k5/8/8/8/8/6r1 b - - 12 62
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 509
Best move: Rg8#