Chess puzzle (Checkmate)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Gunsberg_Defense
Moves: 1. d4 d5 2. c4 dxc4 3. Nf3 c5 4. e3 cxd4 5. Bxc4 Nc6 6. Nxd4 e5 7. Qf3 Nf6 8.
Nxc6 bxc6 9. Qxc6+ Bd7 10. Qf3 Rc8 11. Bb3 Bc6 12. Qg3 Bb4+ 13. Bd2 Bxd2+ 14.
Nxd2 O-O 15. O-O-O Bxg2+ 16. Kb1 Bxh1 17. Rg1 Qxd2 *
Position (FEN): 2r2rk1/p4ppp/5n2/4p3/8/1B2P1Q1/PP1q1P1P/1K4Rb w - - 0 18
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 736
Best move: Qxg7#