Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Other_variations
Moves: 1. e4 c5 2. Qf3 d6 3. Bc4 Nf6 4. d3 e6 5. Nh3 a6 6. a3 Nbd7 7. O-O Be7 8. Qg3
g6 9. Bh6 Ne5 10. Qf4 Nh5 11. Qe3 Nxc4 12. dxc4 e5 13. f4 exf4 14. Nxf4 Bf6 15.
c3 Nxf4 16. Qxf4 Be5 *
Position (FEN): r1bqk2r/1p3p1p/p2p2pB/2p1b3/2P1PQ2/P1P5/1P4PP/RN3RK1 w kq - 1 17
White to move.
Themes: Attacking f2 or f7 Middlegame Mate in 1 
Puzzle rating: 818
Best move: Qxf7#