Chess puzzle (Checkmate)
Opening: Kings_Pawn_Game, Kings_Pawn_Game_Maroczy_Defense
Moves: 1. d4 d6 2. e4 e5 3. d5 Nf6 4. Bg5 Be7 5. Nf3 O-O 6. Nc3 c6 7. Bd3 cxd5 8. Nxd5
Nxd5 9. exd5 Bxg5 10. O-O Bg4 11. h3 Bxf3 12. Qxf3 Qf6 13. Qh5 Qh6 14. Qg4 Qh4
15. Qf5 Qf4 *
Position (FEN): rn3rk1/pp3ppp/3p4/3PpQb1/5q2/3B3P/PPP2PP1/R4RK1 w - - 7 16
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 723
Best move: Qxh7#