Chess puzzle (Checkmate)
Opening: Englund_Gambit_Complex_Declined, Englund_Gambit_Complex_Declined_Other_variations
Moves: 1. d4 e5 2. d5 Bc5 3. Nf3 d6 4. c4 Nf6 5. Bg5 Ne4 6. Bxd8 *
Position (FEN): rnbBk2r/ppp2ppp/3p4/2bPp3/2P1n3/5N2/PP2PPPP/RN1QKB1R b KQkq - 0 6
Black to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1437
Best move: Bxf2#