Chess Openings Lab
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Neo-Grünfeld Defense: Classical Variation

The Neo-Grünfeld Classical Variation arises after both sides castle and White plays 6.c4 against Black's ...d5. Black can support d5 with ...c6, take on c4, or hit back with ...c5, while White wants a comfortable fianchetto setup with central control.

Moves
1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4
ECO
D77
Engine
+0.14 · level (Stockfish 17.1, depth 20)
Played
1,064 games in our lichess sample
White scores
53.5%

Key ideas for both sides

White

  • After 6...c6 7.cxd5 cxd5, play Nc3 and Ne5 to put pressure on d5 and the long diagonal.
  • Against 6...dxc4, play Na3 and Nxc4 to win back the pawn, as the second engine line shows.
  • Use the g2 bishop to pressure d5 and the queenside.
  • In the main line, g4 is a sharp idea that hits a bishop on f5.

Black

  • 6...c6 is a sturdy choice, keeping d5 protected and preparing ...Bf5 or ...Ne4.
  • 6...dxc4 grabs the pawn; then ...a5 and ...Be6 slow White down.
  • 6...c5 7.dxc5 dxc4 leads to sharp play with ...c3 and ...Nd5.
  • Use the g7 bishop on the long diagonal against d4 and b2.

Plans and pawn structure

Both sides have kingside fianchettos, so the long diagonals matter. White wants a stable center, pressure on d5 and space on the queenside. Black chooses between solid ...c6 setups, the pawn grab ...dxc4, or active ...c5. In the main line, ...Ne4 and ...Bf5 give active pieces, while White uses Ne5 and g4 to push back. The game is roughly equal and strategic.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.14: level. Its three top choices for Black:

  1. +0.14 6...c6 7.cxd5 cxd5 8.Nc3 Ne4 9.Ne5
  2. +0.26 6...dxc4 7.Na3 a5 8.Nxc4 Be6 9.b3
  3. +0.28 6...c5 7.dxc5 dxc4 8.Na3 c3 9.Nb5

Pawns, from White's side.

How it scores on lichess

1,064 rated lichess games reached this position; White scored 53.5%.

1200–159953.4%
1600–199954.4%
2000 and up52.9%

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

Where it goes next

  • Classical Variation, Modern Defense6...dxc4 · rare
  • Classical Variation, Polgar Variation6...Nc6 · rare

How to play against it

As Black, choose 6...c6 to keep d5 protected or 6...dxc4 for activity. Avoid passive setups that let White play Nc3 and e4 with a big center. As White, be ready to win back the c4 pawn quickly.

Questions

What are the moves of the Neo-Grünfeld Defense: Classical Variation?

The Neo-Grünfeld Defense: Classical Variation starts 1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4. Its ECO code is D77.

Is the Neo-Grünfeld Defense: Classical Variation good for White?

Stockfish 17.1 rates the position +0.14 at depth 20, which is level. In 1,064 lichess games from our sample, White scored 53.5%. A strategic line for players who like quiet fianchetto positions, with room for sharp play after ...dxc4 or ...c5.

What is the main idea of the Neo-Grünfeld Defense: Classical Variation?

Both sides fianchetto and castle, then White attacks d5 with c4. Black chooses between solid ...c6, the pawn grab ...dxc4, and active ...c5.

What should Black play next?

The engine's first choice is c6, with dxc4 and c5 close behind. 6...c6 keeps d5 protected and prepares ...Ne4 and ...Bf5 after the exchange on d5.

Updated October 2026. Sources and method.