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ECO C00-C19BlackA line in the French Defense

Learn the Exchange, Monte Carlo Variation (4.c4) line in the French Defense

White's Monte Carlo try with 4.c4 sharpens the Exchange; Black develops solidly and castles, ready to play accurately around the resulting isolated/hanging pawns.

The moves you’ll play

  1. 1.e4e6
  2. 2.d4d5
  3. 3.exd5exd5
  4. 4.c4Nf6
  5. 5.Nc3Be7
  6. 6.Nf3O-O

The line continues — master it move by move in the app.

Your coach, move by move

  1. 1... e6We play the French, prepared for whatever structure White chooses.
  2. 2... d5We contest the center; against the Exchange we welcome a lively game.
  3. 3... exd5We recapture; if White sharpens with c4 we head for a lively isolated-pawn middlegame instead of dry symmetry.
  4. +3 more coached moves waiting in the app

Key ideas behind this line

  • Undermine White's d4-e5 pawn chain at its base with ...c5 (and often a later ...f6), piling pressure on d4 and prying open lines for counterplay.
  • Solve the problem of the passive c8-bishop: reroute it via ...Bd7-b5/...a4, free it with ...b6 and ...Ba6, or exchange it before White's space cramps Black.
  • White's standard plan is to gain space with e5, post pieces on d3/f3, and storm the kingside (Qg4, f4-f5), so Black must keep the kingside resilient.

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More lines in this opening

Winawer, Poisoned Pawn Main Line (7.Qg4 Qc7)

The sharpest Winawer main line: Black gives up the dark-squared bishop to wreck White's queenside pawns, then offers g7 to seize the initiative against White's loose center and offside queen.

Winawer, Positional 7.Nf3

White avoids the sharp Qg4 lines with the solid 7.Nf3; Black targets the weak doubled c-pawns with ...Qa5-a4 and prepares ...Nbc6 and ...Bd7 for queenside pressure.

Winawer, Exchange Variation (4.exd5)

If White heads for a quiet game with 4.exd5, Black recaptures and develops naturally for easy, equal play, trading off the traditionally bad light-squared bishop with ...Bf5.

Winawer, 4.a3 Line

Against 4.a3 Black trades and grabs the e4-pawn; after the greedy 6.Qg4 Black returns g7 but gets a big central lead and the open g-file for full compensation.

Tarrasch, Open with 4...Qxd5

Black meets the Tarrasch with the active ...c5 and recaptures on d5 with the queen, avoiding an isolated pawn and reaching a sound, open position with quick development.

Tarrasch, Open IQP with 4...exd5

The other main Tarrasch recapture: Black accepts an isolated queen's pawn in return for free, active piece play, the half-open e-file, and attacking chances.

Tarrasch, Closed with 3...Nf6

The Classical/closed Tarrasch: Black builds the French pawn chain and attacks its base with ...c5 and ...Qb6, planning the freeing breaks ...cxd4 and ...f6.

Advance, Main Line with 6.a3 c4

The main Advance: Black pressures d4 with ...c5, ...Nc6 and ...Qb6, then locks the center with ...c4 to launch a queenside pawn storm with ...b5-b4 where Black holds the majority.

Advance, 6.Be2 with ...Nh6-f5

Against 6.Be2 Black develops the knight via h6 to f5, where it blockades and hammers the d4-pawn, reaching comfortable, active equality.

Advance, Milner-Barry Gambit (6.Bd3)

The Milner-Barry Gambit: rather than grab the d4-pawn and face a dangerous attack, Black calmly develops with ...Bd7 and ...Nge7-g6, neutralizing White's initiative while keeping the structural edge.

Exchange Variation, Active Piece Play

In the drawish-looking Exchange, Black plays for a win with active development — ...Bd6, ...Ne7-g6 and ...Bg4 — refusing dull symmetry and aiming for an initiative.

King's Indian Attack (2.d3)

Against the King's Indian Attack, Black simply occupies the center with ...d5 and ...Nf6, gains queenside space with ...c5, and develops harmoniously for an easy game.

Chigorin Variation (2.Qe2)

Since 2.Qe2 awkwardly discourages ...d5, Black switches to a reversed Closed Sicilian with ...c5 and a kingside fianchetto, where White's early queen move is misplaced.

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