King's Gambit Accepted - Blachly gambit
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Nc6
White advances the king's pawn to e4. Black pushes 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 knight to f3. Black moves the g-pawn to g5.
White develops the light-squared bishop to c4. Black develops the knight to c6.