Chess Openings Lab
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Caro-Kann Defense: Exchange Variation

The Exchange Variation is 2.d4 d5 3.exd5, trading on d5 and creating a symmetrical-looking structure after ...cxd5. White plays for quick development and pressure on the light squares, while Black develops freely and later uses the half-open c-file.

Moves
1.e4 c6 2.d4 d5 3.exd5
ECO
B13
Engine
+0.19 · level (Stockfish 17.1, depth 20)
Played
29,583 games in our lichess sample
White scores
49.8%

Key ideas for both sides

White

  • Set up with Bd3, c3 and Nf3, then Bf4 to control e5. This is the slow Exchange structure.
  • Use Qb3 to hit b7 when Black's light bishop leaves c8, forcing a decision on the queenside.
  • The sharper c4 push, met by ...Nf6 and ...e6, leads to the Panov Attack and isolated-pawn positions.

Black

  • Recapture 3...cxd5. Taking with the queen allows c4 and Nc3 with tempo, the reason for the engine's edge.
  • Develop with ...Nc6, ...Nf6 and ...Bg4 before White can play h3 and Bf4 comfortably.
  • Later use the c-file for the rooks and a queenside minority push with ...b5 and ...b4.

Plans and pawn structure

After ...cxd5 the pawns sit on d4 and d5, with White's c-pawn and Black's e-pawn left. White has the half-open e-file and Black the half-open c-file. White often plays c3, Bd3, Bf4, Nf3 and Qb3 or Qc2, aiming at h7 and the e5 outpost. Black answers with ...Nc6, ...Nf6, ...Bg4 or ...Bf5, ...e6 and a queenside minority attack with ...b5-b4 to break up the c3 pawn.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.19: level. Its three top choices for Black:

  1. +0.19 3...cxd5 4.Nf3 Nf6 5.c3 Nc6 6.Bd3
  2. +0.76 3...Qxd5 4.c4 Qd8 5.Nc3 Nf6 6.Be3
  3. +0.82 3...Qa5+ 4.Bd2 Qxd5 5.Nf3 Bg4 6.c4

Pawns, from White's side.

How it scores on lichess

29,583 rated lichess games reached this position; White scored 49.8%.

under 120050.0%
1200–159949.2%
1600–199949.4%
2000 and up51.6%

Light: White wins. Grey: draws. Dark: Black wins. About the sample.

Where it goes next

  • Panov Attack3...cxd5 · 6,288 games
  • Panov-Botvinnik, Herzog Defense3...cxd5 · rare

How to play against it

As Black, take back with the c-pawn. If you recapture with the queen, c4 and Nc3 gain time and White gets a lasting edge. Develop the light bishop before ...e6. As White, choose your style: slow c3 setups for safety or 4.c4 for sharper play.

Other lines with this name

The lichess opening list also files these lines under the same name, though they reach a different position: 1.e4 c6 2.d4 d5 3.exd5 cxd5; 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bf4; 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Nf3 Nc6.

Questions

What are the moves of the Caro-Kann Defense: Exchange Variation?

The Caro-Kann Defense: Exchange Variation starts 1.e4 c6 2.d4 d5 3.exd5. Its ECO code is B13.

Is the Caro-Kann Defense: Exchange Variation good for White?

Stockfish 17.1 rates the position +0.19 at depth 20, which is level. In 29,583 lichess games from our sample, White scored 49.8%. A solid, low-risk system for White that suits players who like clear plans; Black faces no danger with normal development.

What is the main idea of the Caro-Kann Defense: Exchange Variation?

White trades on d5 for a clear structure and simple piece play. Black recaptures with the c-pawn, develops quickly, and uses the c-file and queenside space.

What should Black play next?

The engine's first choice is cxd5, with Qxd5 and Qa5+ close behind. 3...cxd5 is the natural recapture, keeping a pawn in the center and opening the c-file for Black.

Updated October 2026. Sources and method.