Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 e6 5. Nc3 d6 6. a3 Nf6 7. Bb5 Bd7 8. Nf3
a6 9. Ba4 Be7 10. O-O O-O 11. d5 exd5 12. exd5 Na5 13. Re1 b5 14. Bc2 Bg4 15.
Bg5 Nc4 16. Qd3 Bxf3 17. Bxf6 Bxf6 *
Position (FEN): r2q1rk1/5ppp/p2p1b2/1p1P4/2n5/P1NQ1b2/1PB2PPP/R3R1K1 w - - 0 18
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 743
Best move: Qxh7#