Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 e6 3. f4 Nc6 4. Bb5 Qb6 5. Bxc6 bxc6 6. Nf3 Ba6 7. d3 Ne7 8. O-O
d5 9. Kh1 Ng6 10. f5 Ne7 11. fxe6 fxe6 12. Ne5 Ng6 13. Nxg6 hxg6 14. Qg4 Bc8
15. Qxg6+ Kd8 16. Qf7 Qc7 17. Bg5+ Be7 18. Qxg7 *
Position (FEN): r1bk3r/p1q1b1Q1/2p1p3/2pp2B1/4P3/2PP4/PP4PP/RN3R1K b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 836
Best move: Qxh2#