King's Gambit Accepted - bishop's gambit - Jaenisch variation
1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 c6
White pushes the king's pawn to e4. Black pushes the king's pawn to e5. White moves the f-pawn to f4.
Black captures on f4 with the king's pawn. White develops the light-squared bishop to c4. Black develops the knight to f6.
White develops the knight to c3. Black plays the c-pawn to c6.