King's Pawn Game: Clam Variation, Radisch Gambit

The King's Pawn Game: Clam Variation, Radisch Gambit is a chess opening classified under ECO code C20 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 3 moves: 1. e4 e5 2. d3 Nf6 3. f4 Bc5. The resulting position leaves white to move.