Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. e3 Bf5 4. Nf3 e6 5. Nc3 Ne4 6. Bd2 Nc6 7. cxd5 exd5 8.
Bd3 Nxf2 9. Kxf2 Bxd3 10. Be1 Be4 11. Rf1 Bb4 12. Kg1 a6 13. Nxe4 dxe4 14. Bxb4
exf3 15. Qxf3 Nxb4 *
Position (FEN): r2qk2r/1pp2ppp/p7/8/1n1P4/4PQ2/PP4PP/R4RK1 w kq - 0 16
White to move.
Themes: Attacking f2 or f7 Middlegame Mate in 1 
Puzzle rating: 567
Best move: Qxf7#