The French Defense: Diemer-Duhm Gambit is a chess opening classified under ECO code C00 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 e6 2. d4 d5 3. c4. The resulting position leaves black to move.
Resulting Position
1. e4 e6 2. d4 d5 3. c4
rnbqkbnr/ppp2ppp/4p3/3p4/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - 0 3Resulting Position