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. Bc4 Nc6 7. Bg5 e6 8. O-O
Be7 9. a3 h6 10. Bh4 Qc7 11. f4 b5 12. Nxc6 Qxc6 13. Bd3 Bb7 14. Qe2 O-O-O 15.
e5 dxe5 16. fxe5 Bc5+ 17. Kh1 g5 18. Bf2 *
Position (FEN): 2kr3r/1b3p2/p1q1pn1p/1pb1P1p1/8/P1NB4/1PP1QBPP/R4R1K b - - 1 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 515
Best move: Qxg2#