Chess Openings Lab
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Sicilian Defense: Chekhover Variation

The Chekhover Variation is 2.Nf3 d6 3.d4 cxd4 4.Qxd4, where White recaptures on d4 with the queen instead of the knight. White plans to answer ...Nc6 with Bb5, giving up the bishop to keep the queen in the center, while Black develops and aims to use the bishop pair.

Moves
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4
ECO
B53
Engine
+0.07 · level (Stockfish 17.1, depth 20)
Played
2,003 games in our lichess sample
White scores
53.0%

Key ideas for both sides

White

  • Meet ...Nc6 with Bb5; after Bxc6 the queen stays on d4 and White leads in development.
  • Follow with Nc3, Bg5 and long castling, putting a rook on d1 against the d6 pawn.
  • If Black plays ...Bd7, consider h3, Be2 and short castling with Rd1 for a quiet edge.
  • Use the open d-file and the c3 knight to fight for d5.

Black

  • 4...Nf6 is the engine's best: develop and then hit the queen with ...Nc6.
  • After Bb5 and the trade on c6, recapture with the bishop to keep the structure and get a strong light-squared bishop.
  • 4...Nc6 at once is fine; after Bxc6+ bxc6, play ...e5 and ...Nf6.
  • Use the bishop pair in the long run and play ...e6 and ...Be7 for a solid setup.

Plans and pawn structure

White aims for quick development and a central queen, often castling long and attacking with rooks on the d-file. Black gets the bishop pair and solid pawns, aiming for ...e6, ...Be7 and short castling. Black can also play ...e5 to kick the queen and gain space, accepting a weak d5 square. The middlegame often turns on whether White's lead in development outweighs Black's bishop pair.

Where the engine's main line heads: Open Sicilian: White traded the d-pawn for Black's c-pawn. An Open Sicilian: White traded the d-pawn for Black's c-pawn. White has a lead in development and the d-file, Black has the half-open c-file and two central pawns.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.07: level. Its three top choices for Black:

  1. +0.07 4...Nf6 5.Nc3 Nc6 6.Bb5 Bd7 7.Bxc6
  2. +0.15 4...Nc6 5.Bb5 a6 6.Bxc6+ bxc6 7.O-O
  3. +0.23 4...Bd7 5.h3 Nf6 6.Be2 g6 7.O-O

Pawns, from White's side.

How it scores on lichess

2,003 rated lichess games reached this position; White scored 53.0%.

under 120039.6%
1200–159951.7%
1600–199951.9%
2000 and up58.1%

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

Where it goes next

  • Chekhover Variation, Zaitsev Defense4...Nc6 · rare

How to play against it

With Black, develop with 4...Nf6 and then ...Nc6 to hit the queen with tempo. Do not rush ...e5 unless you have a plan for the d5 hole. With White, take on c6 when the queen is attacked and develop fast, then use the d-file before Black's bishop pair takes over.

Questions

What are the moves of the Sicilian Defense: Chekhover Variation?

The Sicilian Defense: Chekhover Variation starts 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4. Its ECO code is B53.

Is the Sicilian Defense: Chekhover Variation good for White?

Stockfish 17.1 rates the position +0.07 at depth 20, which is level. In 2,003 lichess games from our sample, White scored 53.0%. A practical weapon for White players who want to avoid main lines, while Black gets a sound game with careful play.

What is the main idea of the Sicilian Defense: Chekhover Variation?

White recaptures on d4 with the queen and uses Bb5 to keep it there after ...Nc6. Black gets the bishop pair and aims for solid development, while White plays for a lead in development.

What should Black play next?

The engine's first choice is Nf6, with Nc6 and Bd7 close behind. 4...Nf6 develops and prepares ...Nc6 to hit the queen with tempo.

Updated October 2026. Sources and method.