Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack
1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. Qb3
The Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack is a chess opening classified as ECO B10, reached after 1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. Qb3. It is a line of the Caro-Kann Defense. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 26 times by this move order. White won 54%, 0% were drawn and Black won 46%. The most popular continuation is 4… dxe4 (65% of games).
Engine evaluation: −0.40 (Stockfish, depth 34; best line 4… dxe4 5. d3 exd3 6. Nf3 Nf6 7. Bxd3)
- ECO
- B10
- Moves
- 7 plies
- FEN
rnbqkbnr/pp2pppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq - 1 4- PGN
1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. Qb3
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 2 | |
| 1500-1999 | 23 | |
| 2000+ | 1 | |
| All | 26 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 4… dxe4 | 17 (65%) | |
| 4… e6 | 5 (19%) | |
| 4… d4 | 2 (8%) | |
| 4… Nc6 | 1 (4%) | |
| 4… Nf6 | 1 (4%) |
Master games
1 over-the-board game is classified under this line (White 100%, draw 0%, Black 0%). The strongest:
- FM Shakked Tifferet (2305) – CM Rohun Trakru (1970) 1-0 · Titled Tue 20th Aug Late · 2024-08-20
Highest-rated Lichess games
- bellia10 (2011) – mustafaMslati (2016) 0-1 · 2026-09-07 · 180 + 0s
- bellia10 (1992) – H_o_u_d_i_n_i_e (1991) 0-1 · 2026-09-05 · 180 + 0s
- mee805 (1949) – aleksin3 (1969) 0-1 · 2026-09-04 · 180 + 0s
Comes from
Caro-Kann Defense: Accelerated Panov Attack (2. c4 d5) 1. e4 c6 2. c4 d5
More Caro-Kann Defense lines (all)
- Caro-Kann Defense (1. e4 c6) B10
- Caro-Kann Defense (1… c6 2. Nc3) B10
- Caro-Kann Defense (2. Nc3 d5) B10
- Caro-Kann Defense: Accelerated Panov Attack (1… c6 2. c4) B10
- Caro-Kann Defense: Accelerated Panov Attack, Modern Variation B10
- Caro-Kann Defense: Accelerated Panov Attack, Open Variation B10
- Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian B10
- Caro-Kann Defense: Apocalypse Attack B10
- Caro-Kann Defense: Breyer Variation B10
- Caro-Kann Defense: Breyer Variation, Stein Attack B10
- Caro-Kann Defense: Dinic Gambit B10
- Caro-Kann Defense: Endgame Offer B10
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.