B10

Caro-Kann Defense: Euwe Attack

Chess diagram: Caro-Kann Defense: Euwe Attack after 2. b3

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Statistics from Lichess

438,302 games: White 46.2% / Draw 4.6% / Black 49.2%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
400,362400K
15,22215K
6,8206,820
5,9385,938
2,8072,807
1,8701,870
872872
770770

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

−0.18 The position is about equal

Best play: 2... d5 3. e5 c5 4. Nf3 a6 5. d4 cxd4 6. Nxd4 Qc7 7. f4

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

By rating

Rating changes little here: White scores 49% under 1400, 51% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 148K
1400–1799 279K
1800–2199 239K
2200 and up 41K
Masters, over the board 68

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 27, 2026

Overview

Caro-Kann Defense: Euwe Attack (ECO B10, Semi-Open Games) is a variation of the Caro-Kann Defense, reached after 1. e4 c6 2. b3 (2 moves).

In 438,302 rated Lichess games between players rated 1600 to 2500, White won 46.2%, Black 49.2% and 4.6% were drawn. Black's most played move here is 2…d5, in 91% of those games.

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Popularity by year

The Caro-Kann Defense: Euwe Attack has gained ground since 2016: 0.019% of Lichess games in 2025, up from 0.015%.

Numbers by year
YearShare of gamesGames
20160.015%5,364
20170.017%9,246
20180.018%14,471
20190.016%20,370
20200.014%42,096
20210.016%60,639
20220.016%61,304
20230.017%65,647
20240.019%66,831
20250.019%64,810
2026 (Jan–Apr)0.018%20,177

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Cite this page

Caissa Codex. “Caro-Kann Defense: Euwe Attack (B10)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/caro-kann-defense-euwe-attack