Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 5. Nb3 b6 6. Nxc5 bxc5 7. Qg4 Nf6 8.
Qxg7 Rg8 9. Qh6 Nxe4 10. Qxh7 Nf6 11. Qh4 Rg4 12. Qh8+ Rg8 13. Qh6 Rg6 14. Qd2
Ne4 15. Qf4 Bb7 16. Bd3 Rf6 17. Qh4 Nxf2 18. O-O Nh3+ 19. Qxh3 Rxf1+ 20. Bxf1
Qf6 21. Nc3 Na6 22. Be3 O-O-O 23. Bxa6 Bxa6 24. Rf1 *
Position (FEN): 2kr4/p2p1p2/b3pq2/2p5/8/2N1B2Q/PPP3PP/5RK1 b - - 1 24
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 400
Best move: Qxf1#