Chess puzzle (Advantage)
Opening: Kings_Pawn_Game, Kings_Pawn_Game_Kings_Head_Opening
Moves: 1. e4 e5 2. Nc3 Nf6 3. f3 g6 4. Bc4 Bg7 5. d3 Nc6 6. Bg5 Na5 7. Bxf7+ *
Position (FEN): r1bqk2r/pppp1Bbp/5np1/n3p1B1/4P3/2NP1P2/PPP3PP/R2QK1NR b KQkq - 0 7
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 675
Best move: Kxf7