Vienna Gambit, with Max Lange Defense: Hamppe-Allgaier Gambit, Thorold Variation

The Vienna Gambit, with Max Lange Defense: Hamppe-Allgaier Gambit, Thorold Variation is a chess opening classified under ECO code C25 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 8 moves: 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Nc3 g5 5. h4 g4 6. Ng5 h6 7. Nxf7 Kxf7 8. d4. The resulting position leaves black to move.