Caro-Kann Defense: Endgame Variation: what should Black play?

In the Caro-Kann Defense: Endgame Variation (ECO B10), the engine's preferred continuation for Black is Nf6, which carries an evaluation of +0.20 and has been chosen in 35.8% of recorded games (352K recorded). Developing the knight immediately prepares kingside play, while Black scores well against White's 47.8% score from this position. The most frequent human alternative is Bg4, played in 59.3% of database games (582K recorded) with an evaluation of +0.25.

The Strategic Value of Nf6

Opting for Nf6 allows Black to bring a kingside minor piece into active play without committing the light-squared bishop prematurely. A primary illustrative engine continuation runs Nf6 Nbd2 g6 a4 Bh6 a5, where Black prepares kingside fianchetto structures while White expands on the queenside. This setup keeps Black's defensive perimeter solid while disputing central territory against White's misplaced king on d1.

Alternative Human Approaches

Although Nf6 holds the slight edge according to engine calculations, Bg4 is the move most frequently seen in practice, accounting for 59.3% of recorded master and online games. The engine evaluates Bg4 at +0.25, leading into the illustrative continuation Bg4 Nd2 g6 Be2 Nf6 Ne1, where White scores 48.5%. By actively developing the bishop before White can restrict it, Black contests the f3-knight directly.

Additional Setup Options

Other minor lines include Nd7, seen in 3.0% of encounters (29K recorded, White scoring 49.9%), and g6, seen in 2.0% of games (19K recorded, White scoring 50.3%). Both moves share an evaluation of +0.24 to +0.25 and typically transition into lines such as Nd7 a4 g6 Ne1 a5 Nd2 or g6 Ne1 Nd7 a4 a5 Nd2. Lastly, a5 remains an engine alternative assessed at +0.28, featuring the sample sequence a5 a4 Nf6 Nfd2 g6 f3.