Tree path 7 levels King's Pawn Game › Caro-Kann Defense › Caro-Kann Defense › Caro-Kann Defense › Exchange Variation › Caro-Kann Defense: Exchange Variation › Bulla Attack
Caro-Kann Defense: Exchange Variation, Bulla Attack
Overview
Caro-Kann Defense: Exchange Variation, Bulla Attack is a named branch in the Semi-Open Games group of chess theory, classified under ECO B13.
The Semi-Open Games group covers semi-open games — replies to 1.e4 where Black declines the symmetrical 1…e5 in favour of an asymmetric pawn structure.
Play reaches this position via 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. g4, after 7 plies of opening development.
In the opening tree, this line branches off from Caro-Kann Defense: Exchange Variation, part of the broader King's Pawn Game system.
Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.
- ECO code
- B13
- Group
- Semi-Open Games (B)
- Plies
- 7
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
1,273 games · White 44.1% / Draw 4.8% / Black 51.1%
| Moves | Games | W / D / B |
|---|---|---|
| Nc6 | 697 | |
| Nf6 | 324 | |
| h6 | 79 | |
| e6 | 53 | |
| h5 | 34 | |
| g6 | 30 | |
| a6 | 24 | |
| Qd7 | 10 |
Source: Lichess Opening Explorer · cached 2026-09-26 01:35:01
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