Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. Nc3 e6 5. d4 cxd4 6. Nxd4 Be7 7. Be3 a6 8. a4
Qc7 9. Bd3 O-O 10. O-O Bd7 11. b4 Nc6 12. b5 Nxd4 13. Bxd4 e5 14. b6 Qc6 15.
Nd5 Nxd5 16. exd5 Qxd5 17. Be3 Bc6 18. f3 Rac8 19. Qe2 Qe6 20. a5 Ra8 21. Rfc1
d5 22. c4 d4 23. Bf2 Bb4 24. Bg3 Rfe8 25. Be1 Bxe1 26. Rxe1 Qf6 27. Rac1 Re7
28. c5 Qh6 29. Be4 Bxe4 30. Qxe4 Rc8 31. f4 f6 32. c6 Rxc6 33. Rxc6 bxc6 34.
Qxc6 Qg6 35. b7 Re8 36. Qd5+ Qf7 37. Qxf7+ Kxf7 38. fxe5 Rb8 39. exf6 Kxf6 40.
Rd1 Rxb7 41. Rxd4 Rb1+ 42. Kf2 Rb5 43. Rd6+ Kf5 44. Rxa6 Rb2+ 45. Kg3 Ra2 46.
Ra7 Kg6 47. h4 h5 48. Kh3 Kf6 49. a6 g6 50. Ra8 Kf7 51. a7 Kg7 52. Kg3 Ra3+ 53.
Kf4 Kf7 54. Ke5 Ra5+ 55. Kd6 Ra6+ 56. Kc7 Ra2 57. Kb6 Rb2+ 58. Kc5 Ra2 59. Kb4
Ra1 60. Kb3 Ra6 61. Kb4 Ra1 62. Kb5 Rb1+ 63. Kc6 Ra1 64. Kd5 Ra5+ 65. Ke4 Ra4+
66. Kf3 Ra3+ 67. Kf4 Ra4+ 68. Kg5 Kg7 69. g3 *
Position (FEN): R7/P5k1/6p1/6Kp/r6P/6P1/8/8 b - - 0 69
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1319
Best move: Rg4#