Chess Openings Lab
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Zukertort Opening: Slav Invitation

The Slav Invitation is 1...c6 against 1.Nf3, preparing ...d5 with Slav or Caro-Kann ideas. White can play 2.c4 for Slav positions or 2.e4 for Caro-Kann play, while Black aims for a firm center.

Moves
1.Nf3 c6
ECO
A04
Engine
+0.29 · level (Stockfish 17.1, depth 20)
Played
4,074 games in our lichess sample
White scores
52.7%

Key ideas for both sides

White

  • 2.c4 d5 3.e3 Nf6 4.Nc3 leads to Slav positions where cxd5 creates a symmetrical structure.
  • 2.e4 d5 3.Nc3 Bg4 4.exd5 cxd5 5.Bb5+ reaches Caro-Kann Two Knights lines.
  • 2.Nc3 d5 3.e4 Bg4 4.Be2 gives a quiet but flexible setup with d4 to come.

Black

  • After 2.c4, play ...d5, ...Nf6 and ...Bf5 to develop the bishop before ...e6.
  • Against 2.e4, ...d5 and ...Bg4 pin the f3 knight and pressure d4.
  • Hold the center with ...d5 and develop quickly; aim for ...e6 and ...Be7.

Plans and pawn structure

Black aims for a sturdy ...d5 center with the light-squared bishop outside the pawn chain. In the Slav lines, White plays c4, e3 and Nc3 and trades on d5 to get a symmetrical structure. In the Caro-Kann lines, White trades on d5 and pins with Bb5+, and Black develops with ...Nc6. Both sides fight for small edges in development and center control.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.29: level. Its three top choices for White:

  1. +0.29 2.c4 d5 3.e3 Nf6 4.Nc3 Bf5
  2. +0.27 2.Nc3 d5 3.e4 Bg4 4.Be2 e6
  3. +0.26 2.e4 d5 3.Nc3 Bg4 4.exd5 cxd5

Pawns, from White's side.

How it scores on lichess

4,074 rated lichess games reached this position; White scored 52.7%.

under 120053.2%
1200–159952.7%
1600–199952.2%
2000 and up53.4%

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

How to play against it

As White, choose 2.c4 or 2.e4 and develop normally. Don't let Black get ...d5 and ...Bf5 without pressure on d5. Trade on d5 when it helps your development. Against ...Bg4, a quick h3 or Be2 removes the pin and keeps the f3 knight protecting d4 and e5.

Questions

What are the moves of the Zukertort Opening: Slav Invitation?

The Zukertort Opening: Slav Invitation starts 1.Nf3 c6. Its ECO code is A04.

Is the Zukertort Opening: Slav Invitation good for Black?

Stockfish 17.1 rates the position +0.29 at depth 20, which is level. In 4,074 lichess games from our sample, White scored 52.7%. A solid choice for Slav and Caro-Kann players who want to steer the game into known structures.

What is the main idea of the Zukertort Opening: Slav Invitation?

Black prepares ...d5 with a solid pawn chain and develops the bishop outside. White chooses Slav or Caro-Kann positions with c4 or e4.

What should White play next?

The engine's first choice is c4, with Nc3 and e4 close behind. 2.c4 leads to Slav positions, and after ...d5 and e3 White develops calmly.

Updated October 2026. Sources and method.