Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 Nc6 4. d4 cxd4 5. cxd4 Nf6 6. Nc3 e6 7. Bb5 Bd7 8. Bg5
Be7 9. Qd2 a6 10. Ba4 b5 11. Bb3 b4 12. Bxf6 bxc3 13. bxc3 Bxf6 14. O-O O-O 15.
e5 dxe5 16. dxe5 Nxe5 17. Bc2 Nc4 18. Qd3 Bb5 *
Position (FEN): r2q1rk1/5ppp/p3pb2/1b6/2n5/2PQ1N2/P1B2PPP/R4RK1 w - - 4 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 912
Best move: Qxh7#