Chess Openings Lab
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Slav Defense: Exchange Variation

The Exchange Slav is 3.cxd5, trading pawns early to create a symmetrical structure with an open c-file. Black should recapture 3...cxd5 and develop calmly, while White aims for a small, steady edge with Nc3, Bf4 and Qb3.

Moves
1.d4 d5 2.c4 c6 3.cxd5
ECO
D10, D13
Engine
+0.24 · level (Stockfish 17.1, depth 20)
Played
6,032 games in our lichess sample
White scores
52.9%

Key ideas for both sides

White

  • After 3...cxd5, follow 4.Nc3 Nf6 5.Bf4 Nc6 6.e3 Bf5 7.Qb3 to pressure the b7 pawn.
  • Use the open c-file with Rc1 and look for a knight jump to b5 to hit c7.
  • Keep the bishop on f4 to control the b8-h2 diagonal and the c7 square.
  • If Black plays 3...Qxd5, answer 4.Nc3 and 5.e4 to gain a big center with tempo.

Black

  • 3...cxd5 is the only good recapture, keeping the symmetrical structure and a solid d5 pawn.
  • Develop with ...Nf6, ...Nc6 and ...Bf5, copying White's setup move for move.
  • After Qb3, defend b7 with ...Qb6 or ...Na5 and accept a queen trade if offered.
  • Avoid 3...Qxd5 and 3...Nf6; the engine gives White a clear edge in both.

Plans and pawn structure

The structure is symmetrical, with the c-file open for both sides. Both sides develop: knights to c3 and c6, bishops to f4 and f5. White's small edge comes from moving first, so Black must watch b7 and the c-file. Plans include Rc1, Bb5 and Ne5 for White, and ...a6, ...Rc8 and ...Bd6 for Black. Many games reach an even ending if Black stays accurate.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.24: level. Its three top choices for Black:

  1. +0.24 3...cxd5 4.Nc3 Nf6 5.Bf4 Nc6 6.e3
  2. +0.71 3...Nf6 4.dxc6 Nxc6 5.Nf3 e5 6.dxe5
  3. +1.27 3...Qxd5 4.Nc3 Qa5 5.e4 Nf6 6.Bd3

Pawns, from White's side.

How it scores on lichess

6,032 rated lichess games reached this position; White scored 52.9%.

under 120050.8%
1200–159953.8%
1600–199951.2%
2000 and up55.6%

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

Where it goes next

  • Exchange Variation, Symmetrical Line3...cxd5 · rare

How to play against it

As Black, recapture 3...cxd5 and develop with ...Nf6, ...Nc6, ...Bf5 and ...e6, always checking b7. Avoid early queen moves, and do not copy White blindly when a check or a capture on b7 is coming. A calm, accurate setup holds the balance comfortably.

Other lines with this name

The lichess opening list also files this line under the same name, though it reaches a different position: 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5.

Questions

What are the moves of the Slav Defense: Exchange Variation?

The Slav Defense: Exchange Variation starts 1.d4 d5 2.c4 c6 3.cxd5. Its ECO code is D10, D13.

Is the Slav Defense: Exchange Variation good for White?

Stockfish 17.1 rates the position +0.24 at depth 20, which is level. In 6,032 lichess games from our sample, White scored 52.9%. Solid for White players who like steady endings; Black needs patience and accurate development rather than sharp ideas.

What is the main idea of the Slav Defense: Exchange Variation?

White trades pawns to create a symmetrical structure and keeps a small edge from the first move. Black recaptures with the c-pawn, develops calmly and watches the b7 pawn.

What should Black play next?

The engine's first choice is cxd5, with Nf6 and Qxd5 close behind. 3...cxd5 keeps the symmetrical structure and leads to a balanced game.

Updated October 2026. Sources and method.