Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qa4 Nf6 5. Nf3 e6 6. Bg5 Be7 7. Nc3 h6 8.
Bh4 g5 9. Bg3 Bb4 10. Qb3 Nxe4 11. Ne5 Bxc3+ 12. bxc3 Nxg3 13. Nxc6 bxc6 14.
fxg3 Qc7 15. Bd3 Rb8 16. Qc4 d5 17. Qd4 e5 18. Qf2 Qa5 19. O-O Be6 20. Qf6 Kd7
21. Bf5 Qxc3 22. Bxe6+ fxe6 23. Qf7+ Kd6 24. Qxa7 Rhf8 25. Rfb1 Rxb1+ 26. Rxb1
Qxc2 27. Qa3+ c5 28. Rb6+ Ke7 29. Rb7+ Kf6 30. Qf3+ Qf5 31. Qh5 e4 32. Qxh6+
Ke5 33. Qg7+ Rf6 34. Qc7+ Kd4 35. Rb1 Qf2+ 36. Kh1 Qf1+ 37. Rxf1 *
Position (FEN): 8/2Q5/4pr2/2pp2p1/3kp3/6P1/P5PP/5R1K b - - 0 37
Black to move.
Themes:  Endgame, Queen and Rook Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 435
Best move: Rxf1#