Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Three_Knights_Game
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bc5 4. Bc4 h5 5. O-O Nc6 6. Bxf7+ *
Position (FEN): r1bqk2r/pppp1Bp1/2n2n2/2b1p2p/4P3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq - 0 6
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 616
Best move: Kxf7