French Defense: Diemer-Duhm Gambit Accepted

1.e4 e6 2.d4 d5 3.c4 dxe4

ECO C00

The French Defense: Diemer-Duhm Gambit Accepted is a chess opening line in the French Defense complex, reached after 1.e4 e6 2.d4 d5 3.c4 dxe4.

It is catalogued under code C00 in the Encyclopaedia of Chess Openings (ECO).

The defining move dxe4 is chosen by Black on move 3.

Study this line with a grandmaster

This position is covered in the Beat the French with 3.Nc3 course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.