The Caro-Kann with 2.d4 arises after 1.e4 c6 2.d4. ECO code: B12.

The main move, establishing a classical pawn centre. After 2...d5, the game enters the heart of Caro-Kann theory, with White choosing between 3.Nc3 (or 3.Nd2), 3.e5 (Advance), 3.exd5 (Exchange), or 3.f3 (Fantasy).