King's Gambit Accepted - bishop's gambit - Anderssen variation
1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 c6
White pushes the king's pawn to e4. Black advances the king's pawn to e5. White advances the f-pawn to f4.
Black captures on f4 with the king's pawn. White develops the light-squared bishop to c4. Black advances the queen's pawn to d5.
White captures with the light-squared bishop on d5. Black plays the c-pawn to c6.