Chess puzzle (Advantage)
Opening: Alekhine_Defense, Alekhine_Defense_Balogh_Variation
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 Nb6 5. Bxf7+ *
Position (FEN): rnbqkb1r/ppp1pBpp/1n1p4/4P3/3P4/8/PPP2PPP/RNBQK1NR b KQkq - 0 5
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 673
Best move: Kxf7