Chess puzzle (Advantage)
Opening: Bishops_Opening, Bishops_Opening_Berlin_Defense
Moves: 1. e4 e5 2. Bc4 Nf6 3. a3 Nxe4 4. Bxf7+ *
Position (FEN): rnbqkb1r/pppp1Bpp/8/4p3/4n3/P7/1PPP1PPP/RNBQK1NR b KQkq - 0 4
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 543
Best move: Kxf7