Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Bc4 Nc6 5. d3 Bg4 6. h3 Bxf3 7. Qxf3 Ne5 8.
Qe3 Nxc4 9. dxc4 e5 10. Nd5 Be7 11. O-O O-O 12. Rd1 a6 13. Bd2 Re8 14. Bc3 Nxd5
15. cxd5 Qd7 16. Qg3 f5 17. exf5 Qxf5 18. f4 exf4 *
Position (FEN): r3r1k1/1p2b1pp/p2p4/2pP1q2/5p2/2B3QP/PPP3P1/R2R2K1 w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 520
Best move: Qxg7#