Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. cxd5 Qxd5 4. Nc3 Qa5 5. Nf3 Nc6 6. Bd2 e6 7. e4 Bb4 8.
Bd3 O-O 9. e5 Nd5 10. Bxh7+ Kh8 11. Ng5 g6 12. Qf3 Nd8 13. Nxd5 Bxd2+ 14. Kf1
exd5 *
Position (FEN): r1bn1r1k/ppp2p1B/6p1/q2pP1N1/3P4/5Q2/PP1b1PPP/R4K1R w - - 0 15
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1311
Best move: Qf6#