Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Be3 e5 7. Nb3 Be7 8. Be2
Be6 9. g4 Nfd7 10. Qd2 Nb6 11. O-O-O N8d7 12. h4 Rc8 13. h5 Nc4 14. Bxc4 Rxc4
15. f3 Qc7 16. Kb1 O-O 17. h6 g6 18. Bg5 Bxg5 19. Qxg5 Rc8 20. Qe7 Rc6 21. Rd2
Qd8 22. Qxd8+ Rxd8 23. Rhd1 Nb6 24. Nd5 Bxd5 25. exd5 Rc7 26. Re2 f6 27. Nd2
Kf7 28. Ne4 Ke7 29. g5 Nd7 30. f4 f5 31. Ng3 e4 32. Nf1 Rdc8 33. Ne3 b5 34.
Red2 Nb6 35. Rd4 Nc4 36. Nxc4 Rxc4 37. b3 Rc3 38. a4 Rxc2 39. axb5 axb5 40. Rb4
Rf2 41. Rxb5 Rcc2 42. Rb7+ Kd8 43. Rxh7 Rb2+ 44. Ka1 Ra2+ 45. Kb1 Rfb2+ 46. Kc1
Rf2 47. Rg7 *
Position (FEN): 3k4/6R1/3p2pP/3P1pP1/4pP2/1P6/r4r2/2KR4 b - - 8 47
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1467
Best move: Ra1#