Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. O-O g6 7. d4 cxd4 8.
Nxd4 Bg7 9. Be3 Nf6 10. Nc3 O-O 11. f3 a6 12. Qd2 Rac8 13. b3 Nxd4 14. Bxd4 Qc6
15. Rfd1 Rfd8 16. Na4 Nd7 17. Bxg7 Kxg7 18. Qd4+ f6 19. Rac1 Nc5 20. Nc3 Ne6
21. Qd2 Qc5+ 22. Kh1 Qg5 23. Nd5 Qxd2 24. Rxd2 Kf7 25. h4 h5 26. Rdc2 Rc6 27.
Kg1 a5 28. Kf2 Nd4 29. Rc3 e6 30. Nf4 Rdc8 31. Ke3 e5 32. Nd5 b5 33. Rb1 b4 34.
Rcc1 Ke6 35. g4 hxg4 36. fxg4 Rh8 37. Rh1 f5 38. gxf5+ gxf5 39. Rbf1 f4+ 40.
Nxf4+ exf4+ 41. Kxd4 Rf8 42. h5 Rc7 43. h6 Rh7 44. c5 dxc5+ 45. Kxc5 Ke5 46.
Kb5 Ra8 47. Rh4 Rb8+ 48. Kxa5 *
Position (FEN): 1r6/7r/7P/K3k3/1p2Pp1R/1P6/P7/5R2 b - - 0 48
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1473
Best move: Ra7#