Chess Openings Lab
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Caro-Kann Defense: Maróczy Variation

The Maroczy Variation is 2.d4 d5 3.f3, holding e4 with the f-pawn so White can keep a broad pawn center. The cost is a loosened kingside and dark squares like e3, so Black aims to hit d4 and the a7-g1 diagonal before White consolidates.

Moves
1.e4 c6 2.d4 d5 3.f3
ECO
B12
Engine
+0.17 · level (Stockfish 17.1, depth 20)
Played
3,486 games in our lichess sample
White scores
53.6%

Key ideas for both sides

White

  • Keep the three-pawn center with Nc3 and Be3, then Qd2 and long castling for a kingside pawn storm.
  • If Black takes with ...dxe4, recapture fxe4 and use the open f-file for a rook or the queen.
  • Answer the ...Qb6 raid by defending d4 with Be3 and Qd2, and give up b2 only if the open b-file helps your rook.

Black

  • Play ...e6 and ...Bb4, the top engine line, pinning the c3 knight and preparing ...c5 against d4.
  • Try the fianchetto ...g6, ...Bg7 and ...Qb6, piling on d4 and b2 from two directions.
  • The direct ...dxe4 fxe4 ...e5 strikes the center at once while White's kingside is loose.
  • Do not let White castle long in peace. Breaks with ...c5 or ...e5 must come early.

Plans and pawn structure

With pawns on d4, e4 and f3, White has the big center but the g1 knight has lost f3 and the dark squares around e3 are soft. White wants Nc3, Be3, Qd2 and O-O-O, sometimes followed by g4 and h4. Black wants to undermine the center before that happens: ...e6, ...Bb4 and ...c5, or ...g6, ...Bg7 and ...Qb6 against d4 and b2. If Black plays ...dxe4 fxe4 ...e5, the game opens and White's king can feel the draft on the g1-a7 diagonal.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.17: level. Its three top choices for Black:

  1. +0.17 3...e6 4.Nc3 Bb4 5.Bd2 Ne7 6.Qe2
  2. +0.28 3...g6 4.Nc3 Bg7 5.Be3 Qb6 6.Qd2
  3. +0.29 3...dxe4 4.fxe4 e5 5.Nf3 Bg4 6.c3

Pawns, from White's side.

How it scores on lichess

3,486 rated lichess games reached this position; White scored 53.6%.

under 120045.9%
1200–159952.5%
1600–199955.4%
2000 and up53.4%

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

Where it goes next

  • Maróczy Variation, Maróczy Gambit3...dxe4 · rare

How to play against it

As Black, act quickly against d4 and do not drift into a passive setup. The ...Qb6 idea is strong because f3 weakens White's dark squares. As White, finish development with Be3 and Qd2 before grabbing space, and be ready to give the b2 pawn for open lines if Black takes it.

Questions

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

The Caro-Kann Defense: Maróczy Variation starts 1.e4 c6 2.d4 d5 3.f3. Its ECO code is B12.

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

Stockfish 17.1 rates the position +0.17 at depth 20, which is level. In 3,486 lichess games from our sample, White scored 53.6%. An ambitious setup for White players who like big centers and opposite-side castling; it gives Black clear targets on the dark squares.

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

White defends e4 with the f-pawn to keep a big pawn center. Black must strike before White finishes development, with ...e6 and ...c5, a ...g6 and ...Qb6 setup, or ...dxe4 followed by ...e5.

What should Black play next?

The engine's first choice is e6, with g6 and dxe4 close behind. 3...e6 prepares ...Bb4 and ...c5, attacking White's center from both the side and the front.

Updated October 2026. Sources and method.