Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 d6 6. Be3 Bd7 7. Be2 Nc6 8. O-O
Be7 9. a3 Bg5 10. Nxc6 Bxc6 11. Bxg5 Qxg5 12. Qxd6 Rd8 13. Qb4 Ne7 14. f4 Qg6
15. Rad1 O-O 16. Qxe7 Rde8 17. Qb4 f5 18. exf5 *
Position (FEN): 4rrk1/1p4pp/p1b1p1q1/5P2/1Q3P2/P1N5/1PP1B1PP/3R1RK1 b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 837
Best move: Qxg2#