Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Bc4 g6 3. Nf3 Bg7 4. c3 e6 5. d4 b6 6. d5 Ne7 7. d6 Nec6 8. Bf4 a6
9. e5 b5 10. Be2 O-O 11. O-O Bb7 12. Nbd2 f6 13. exf6 Bxf6 14. Re1 Bxc3 15. Bh6
Bg7 16. Bxg7 Kxg7 17. Ne4 Rf5 18. Qc2 Ne5 19. Nxc5 Nxf3+ 20. Bxf3 Bxf3 21. gxf3
Rxf3 22. Qe4 Qg5+ 23. Kf1 Qf5 24. Qxa8 Rxf2+ 25. Kg1 Nc6 26. Nxe6+ Kh6 27. Qf8+
Qxf8 28. Nxf8 Rxf8 29. Re7 Nxe7 30. dxe7 Re8 31. Rd1 Kg7 32. Rxd7 Kf7 33. Rd6
a5 34. Ra6 a4 35. Rb6 Rxe7 36. Rxb5 Re2 37. h3 a3 38. bxa3 Rxa2 39. Rb3 h5 40.
Rb7+ Kf6 41. Ra7 g5 42. a4 g4 43. hxg4 hxg4 44. a5 Kg5 45. a6 Kf4 46. Ra8 Kg3
47. a7 *
Position (FEN): R7/P7/8/8/6p1/6k1/r7/6K1 b - - 0 47
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1047
Best move: Ra1#