Chess Openings Lab
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French Defense: Classical Variation, Delayed Exchange Variation

The Delayed Exchange is 4.exd5 in the Classical French, swapping pawns on d5 after Black has already played ...Nf6. White aims for a calm symmetrical game with easy development, while Black chooses between the solid 4...exd5 and the more active knight recapture.

Moves
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.exd5
ECO
C11
Engine
+0.05 · level (Stockfish 17.1, depth 20)
Played
500 games in our lichess sample
White scores
53.6%

Key ideas for both sides

White

  • Develop with Nf3, Bd3 and short castling, the same setup the engine shows after 4...exd5.
  • Watch for Nb5 against a black bishop on d6. Trading it removes one of Black's best attacking pieces.
  • Against 4...Nxd5 keep it simple with Nf3 and Bd3, and trade on d5 when it saddles Black with a pawn there.
  • If Black tries 4...Bb4, take on e6 with 5.dxe6 and keep the extra space.

Black

  • 4...exd5 is the main move. It opens the c8 bishop and gives a symmetrical, level structure.
  • Place the bishop on d6 and pin with ...Bg4 once White castles, adding pressure on the f3 knight.
  • The 4...Nxd5 recapture keeps the e-file closed and lets the knight trade itself off for the c3 knight.
  • Mirror White's development, then look for ...Re8 on the open e-file and a knight jump to e4.

Plans and pawn structure

After 4...exd5 both sides have a d-pawn on the fourth rank and an open e-file. Plans revolve around piece placement: bishops to d3 and d6, rooks to e1 and e8, and pins with Bg5 or ...Bg4. The first side to control the e-file or plant a knight on e5 or e4 gets the edge. With so much symmetry, small tactics matter, such as Nb5 hitting a bishop on d6.

Where the engine's main line heads: Symmetrical center: d4 against d5, open e-file. A symmetrical center: d4 against d5 with an open e-file. Neither side has pawn weaknesses, so piece activity decides.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.05: level. Its three top choices for Black:

  1. +0.05 4...exd5 5.Nf3 Bd6 6.Bd3 O-O 7.O-O
  2. +0.35 4...Nxd5 5.Nf3 Be7 6.Bd3 O-O 7.Nxd5
  3. +0.66 4...Bb4 5.dxe6 Bxe6 6.Nf3 O-O 7.Be2

Pawns, from White's side.

How it scores on lichess

500 rated lichess games reached this position; White scored 53.6%.

under 120056.3%
1200–159946.5%
1600–199958.1%
2000 and up48.6%

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

Where it goes next

How to play against it

As Black, recapture with 4...exd5 and develop naturally. You already have a knight on f6, so your position is comfortable. Do not play 4...Bb4 here: 5.dxe6 leaves Black chasing material. Keep an eye on Nb5, and be ready to retreat or trade the d6 bishop when it comes.

Questions

What are the moves of the French Defense: Classical Variation, Delayed Exchange Variation?

The French Defense: Classical Variation, Delayed Exchange Variation starts 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.exd5. Its ECO code is C11.

Is the French Defense: Classical Variation, Delayed Exchange Variation good for White?

Stockfish 17.1 rates the position +0.05 at depth 20, which is level. In 500 lichess games from our sample, White scored 53.6%. A sound choice for White players who want quiet, theory-light positions, but it gives Black an easy route to equality.

What is the main idea of the French Defense: Classical Variation, Delayed Exchange Variation?

White turns the Classical French into a symmetrical position with 4.exd5. The fight is about quick development, the open e-file and outposts on e5 and e4.

What should Black play next?

The engine's first choice is exd5, with Nxd5 and Bb4 close behind. 4...exd5 is natural because it frees Black's light-squared bishop and keeps a strong pawn on d5.

Updated October 2026. Sources and method.