Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 Qxb6 6. Nc3 d6 7. e4 g6 8. Nf3 Bg7
9. Be2 O-O 10. O-O Nbd7 11. Nd2 Qa7 12. a4 Rb8 13. a5 Ne8 14. Nc4 Nc7 15. f4
Nb5 16. Bd2 Nf6 17. Kh1 Nxc3 18. Bxc3 Nxe4 19. Bxg7 Kxg7 20. Qc2 Nf6 21. Ne3
Rb4 22. f5 Qb7 23. Ra4 Rxb2 24. Qd1 Bd7 25. Raf4 Bb5 26. Bxb5 Qxb5 27. Nc4 Rb4
28. Qd3 Rb3 29. Qd2 Rb1 30. Ne3 Rxf1+ 31. Rxf1 Rb8 32. fxg6 hxg6 33. Qf2 Qb2
34. Qg3 Rb3 35. Qg5 Qe5 36. Nf5+ Qxf5 37. Rxf5 Rb1+ 38. Rf1 *
Position (FEN): 8/4ppk1/p2p1np1/P1pP2Q1/8/8/6PP/1r3R1K b - - 2 38
Black to move.
Themes: Hanging Piece Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 567
Best move: Rxf1#