Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Vienna_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 dxc4 5. e3 b5 6. Ne5 a6 7. Qf3 Nd5 *
Position (FEN): rnbqkb1r/2p2ppp/p3p3/1p1nN3/2pP4/2N1PQ2/PP3PPP/R1B1KB1R w KQkq - 2 8
White to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 693
Best move: Qxf7#