Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nb5 O-O 7. e5 Nd5 8.
Bd2 Nxc3 9. Bxc3 Bxc3+ 10. Nxc3 Nc6 11. Qd6 Qa5 12. f4 f6 13. exf6 Rxf6 14.
O-O-O e5 15. Bc4+ Kh8 16. Qd3 Rxf4 17. Rhf1 Qc7 18. Nd5 Qd8 19. Nxf4 exf4 20.
Rxf4 Ne5 21. Qd6 Nxc4 22. Qf8+ Qxf8 *
Position (FEN): r1b2q1k/pp1p2pp/8/8/2n2R2/8/PPP3PP/2KR4 w - - 0 23
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 775
Best move: Rxf8#