Caro–Kann Defence: what should Black play?

In the Caro–Kann Defence, Bronstein-Larsen Variation, the most statistically successful and engine-recommended continuation for Black is Nxe4. This move, played in 54.4% of the 81,457 recorded games, addresses the central tension by removing the active e4:white and leads to a balanced evaluation of +0.29. By opting for this exchange, Black simplifies the position and prepares to challenge the white queen's placement in the center.

The strategic objective of Nxe4

The move Nxe4 is the primary choice in this position, appearing in 56,000 recorded games. The engine favors this exchange as it forces White to commit the queen or a pawn to the e4 square, often leading to the main line Nxe4 Qxe4 Qd5 Qe3 Bf5 c4. By playing this sequence, Black aims to achieve a solid structure while developing the light-squared bishop to an active post. White maintains a slight edge in these lines, scoring 51.0%, but Black retains significant drawing chances and counterplay.

Development alternatives with Nbd7

The second most popular choice is Nbd7, which has been played in 17.8% of games (18,000 instances). This move focuses on solid development and prepares to recapture on e4 with a knight rather than the queen, maintaining a flexible pawn structure. The engine evaluates this slightly lower at +0.44, with White scoring 48.2% in practice. The typical continuation Nbd7 Nf3 Nxe4 Qxe4 Nf6 Qd3 shows Black maneuvering the knight to f6 to gain a tempo against the white queen.

Offbeat responses and engine evaluations

While less common, moves such as g6 and Qd5 offer different tactical profiles. The move g6 is found in 4.6% of games and carries an evaluation of +0.39, often leading to a kingside fianchetto. Interestingly, White’s win rate drops to 44.0% in this specific line, suggesting it may serve as a potent surprise weapon. The immediate Qd5 is rarer, played in only 2.0% of games, and leads to sharp complications following Qd5 Nxf6+ exf6 Be3 Bf5 Qd2, where Black accepts a doubled pawn structure in exchange for active piece play.