Chess puzzle (Checkmate)
Opening: Four_Knights_Game, Four_Knights_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. Nc3 Qa5
8. d3 Bb4 9. Bd2 Be6 10. O-O Qb6 11. Ng5 O-O 12. Nxe6 fxe6 13. Qg4 Rf6 14. a3
Bc5 15. b4 Bxf2+ 16. Rxf2 Qxf2+ 17. Kh1 Qf1+ 18. Rxf1 *
Position (FEN): r5k1/ppp3pp/2n1pr2/4p3/1P4Q1/P1NP4/2PB2PP/5R1K b - - 0 18
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 572
Best move: Rxf1#