Caro-Kann Defense: Exchange Variation, Bulla Attack
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Statistics from Lichess
1,273 games: White 44.1% / Draw 4.8% / Black 51.1%
| Next move | Games | White / Draw / BlackW / D / B |
|---|---|---|
| 697697 | ||
| 324324 | ||
| 7979 | ||
| 5353 | ||
| 3434 | ||
| 3030 | ||
| 2424 | ||
| 1010 |
Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 5, 2026
Engine evaluation
−0.63 Black is slightly better
Best play: 4... Nc6 5. Nc3 h5 6. g5 Bg4 7. Be2 e5 8. dxe5 d4 9. Nb5
Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.
Overview
Caro-Kann Defense: Exchange Variation, Bulla Attack (ECO B13, Semi-Open Games) is a variation of the Caro-Kann Defense: Exchange Variation, reached after 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. g4 (4 moves).
In 1,273 rated Lichess games between players rated 1600 to 2500, White won 44.1%, Black 51.1% and 4.8% were drawn. Black's most played move here is 4…Nc6, in 55% of those games.
Written from the Lichess opening list and explorer. Know this line well? Write about it.
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How to play against the Caro-Kann Defense: Exchange Variation, Bulla Attack
4…Nf6 scores best for Black: 58.6%, with Black winning 55.9% and White 38.6% of 324 games. The most played answer, 4…Nc6, scores lowest: 52.7% in 697 games. Stockfish's first choice is 4…Nc6.
Main answers: those played in at least 5% of these games. Score: Black's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings
Cite this page
Caissa Codex. “Caro-Kann Defense: Exchange Variation, Bulla Attack (B13)”. Lichess data as of 5 Nov 2026. https://chesscodex.org/openings/caro-kann-defense-exchange-variation-bulla-attack