Caro-Kann Defense: Exchange Variation, Bulla Attack

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.g4

ECO B13

The Caro-Kann Defense: Exchange Variation, Bulla Attack is a chess opening line in the Caro-Kann Defense complex, reached after 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.g4.

It is catalogued under code B13 in the Encyclopaedia of Chess Openings (ECO).

The defining move g4 is chosen by White on move 4.

Study this line with a grandmaster

This position is covered in the Caro-Kann Defense 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.