King's Gambit Accepted: Salvio Gambit, Anderssen Counterattack

The King's Gambit Accepted: Salvio Gambit, Anderssen Counterattack is a chess opening classified under ECO code C37 in the Open Games & French Defense family, beginning with 1.e4 e5 or 1.e4 e6, including the Italian Game, Ruy Lopez, and French Defense. It is reached after 7 moves: 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 d6. The resulting position leaves white to move.