B15

Caro-Kann Defense 2…d5 3. Nc3

Chess diagram: Caro-Kann Defense after 3. Nc3

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

15,544,739 games: White 49.7% / Draw 5.6% / Black 44.7%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
12,671,00512.7M
959,182959K
Campomanes Attack 868,050868K
299,052299K
Gurgenidze System 273,771274K
189,678190K
Gurgenidze Counterattack 78,33878K
43,09743K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 25, 2026

Engine evaluation

+0.34 White is slightly better

Best play: 3... dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2

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 53% under 1400, 52% at 2200 and up and 52% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 3.6M
1400–1799 6.6M
1800–2199 9.6M
2200 and up 2M
Masters, over the board 21K

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 26, 2026

Overview

Caro-Kann Defense (ECO B15, Semi-Open Games) is a variation of the Caro-Kann Defense, reached after 1. e4 c6 2. d4 d5 3. Nc3 (3 moves).

In 15,544,739 rated Lichess games between players rated 1600 to 2500, White won 49.7%, Black 44.7% and 5.6% were drawn. Black's most played move here is 3…dxe4, in 82% of those games.

It branches into 4 named variations; the most played are Caro-Kann Defense: Campomanes Attack and Caro-Kann Defense: Gurgenidze System. In all, 13 named lines continue from it.

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How to answer 3. Nc3

The most played answer, 3…dxe4, also scores best for Black: 48.0%, with Black winning 45.0% and White 49.1% of 12.7M games. Of the main answers, 3…e6 scores lowest: 44.5%. Stockfish's first choice is also 3…dxe4.

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

Popularity by year

This line has gained ground since 2016: 0.72% of Lichess games in 2025, up from 0.48%.

Numbers by year
YearShare of gamesGames
20160.48%170,396
20170.58%316,907
20180.63%491,442
20190.58%724,288
20200.54%1,571,130
20210.52%2,048,085
20220.55%2,070,243
20230.58%2,194,475
20240.65%2,343,091
20250.72%2,487,768
2026 (Jan–Apr)0.76%832,133

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

Variations (4)

Transpositions

All 13 named lines that continue from here

Cite this page

Caissa Codex. “Caro-Kann Defense (B15)”. Lichess data as of 25 Oct 2026. https://chesscodex.org/openings/caro-kann-defense-6