Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Bg4 6. c3 e6 7. Qa4 Bxf3 8.
Nxf3 Qb6 9. O-O-O c4 10. Ne5 Rc8 11. f3 Nh5 12. Nxc6 Rxc6 13. Be5 f6 14. Bb8 f5
15. e4 fxe4 16. fxe4 Be7 17. exd5 exd5 18. Be2 Nf6 19. Rde1 O-O 20. Bxa7 Qa6
21. Bd1 Ne4 22. Kb1 Ra8 23. Qxa6 Rxa6 24. Bc5 Bxc5 25. dxc5 Rxa2 26. Kc2 Nxc5
27. Bf3 Nd3 28. Bxd5+ Kh8 29. Rb1 b5 30. Bxa8 Rxa8 31. Rhf1 h6 32. Rf5 Rb8 33.
g4 Rb6 34. g5 hxg5 35. Rxg5 Kh7 36. Rbg1 g6 37. h4 Nf4 38. Re5 Rf6 39. Re7+ Kh6
40. Re5 Nd3 41. Rxb5 Rf2+ 42. Kb1 Nf4 43. Rg4 Rf1+ 44. Ka2 Kg7 45. Rb4 Ne2 46.
Rgxc4 Nc1+ 47. Ka3 Nd3 48. Ka4 Ra1+ 49. Kb5 Nxb4 50. Kxb4 Rh1 51. b3 Kf6 52.
Rc5 Rxh4+ 53. c4 g5 54. Rb5 g4 55. Ka5 g3 56. c5 g2 57. Rb8 Rg4 58. Rf8+ Ke5
59. Re8+ Kd5 60. Re1 Kxc5 61. Rg1 Rg3 62. b4+ Kc6 63. b5+ Kc5 64. b6 *
Position (FEN): 8/8/1P6/K1k5/8/6r1/6p1/6R1 b - - 0 64
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 925
Best move: Ra3#