Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Morphy_Gambit
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Bc4 h6 5. O-O Nf6 6. Nxd4 Be7 7. Qf3 Bg4 8.
Qg3 O-O 9. h3 Bh5 10. Nc3 Bg6 11. Qxg6 d5 12. Qg3 dxc4 13. Bxh6 Nh5 14. Qg4
Qxd4 15. Nd5 Bd6 16. Rad1 Qe5 17. f4 Qxe4 18. Nf6+ Nxf6 *
Position (FEN): rn3rk1/ppp2pp1/3b1n1B/8/2p1qPQ1/7P/PPP3P1/3R1RK1 w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 509
Best move: Qxg7#