Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Bowdler_Attack
Moves: 1. e4 c5 2. Bc4 d6 3. Qf3 Nf6 4. Nc3 g6 5. d3 Bg7 6. Bg5 O-O 7. h3 Nc6 8. Qg3
Qa5 9. O-O-O Nh5 10. Qe3 Bxc3 11. bxc3 Qxc3 12. Bxe7 Nxe7 13. Nf3 b5 14. Bxb5
Qa3+ 15. Kb1 Qb4+ 16. Kc1 Qxb5 17. Qh6 Qa5 18. Ng5 Be6 *
Position (FEN): r4rk1/p3np1p/3pb1pQ/q1p3Nn/4P3/3P3P/P1P2PP1/2KR3R w - - 4 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 875
Best move: Qxh7#