Chess puzzle (Checkmate)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_Ryder_Gambit
Moves: 1. d4 d5 2. e4 dxe4 3. f3 exf3 4. Qxf3 Nf6 5. Nc3 Bg4 6. Qxb7 Nbd7 7. Bb5 e6 8.
Bxd7+ Nxd7 9. Nf3 Bd6 10. Qe4 Bxf3 11. Qxf3 O-O 12. O-O e5 13. Qg3 exd4 14. Qg4
dxc3 15. Bh6 Nf6 *
Position (FEN): r2q1rk1/p1p2ppp/3b1n1B/8/6Q1/2p5/PPP3PP/R4RK1 w - - 2 16
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 916
Best move: Qxg7#