Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 b5 7. a3 Bb7 8. Bg5
g6 9. O-O Bg7 10. Re1 h6 11. Bh4 g5 12. Bg3 Nh5 13. Nf5 Bxc3 14. bxc3 Nf6 15.
e5 dxe5 16. Bxe5 Qd5 17. Ng7+ Kf8 18. Bxf6 *
Position (FEN): rn3k1r/1b2ppN1/p4B1p/1p1q2p1/8/P1PB4/2P2PPP/R2QR1K1 b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 650
Best move: Qxg2#