Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Vienna_Gambit
Moves: 1. e4 e5 2. f4 Nf6 3. Nc3 Nc6 4. Nf3 Bb4 5. Bc4 d6 6. Bxf7+ *
Position (FEN): r1bqk2r/ppp2Bpp/2np1n2/4p3/1b2PP2/2N2N2/PPPP2PP/R1BQK2R b KQkq - 0 6
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 567
Best move: Kxf7