ECO D94 · Grünfeld Defense

Grünfeld Defense: Opocensky Variation

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd2

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Black to move. The arrow shows Stockfish’s best move.
Best move

6… e6−0.01

The position is roughly equal. Stockfish 18, depth 18.

Analyze this position

In the Grünfeld Defense: Opocensky Variation (D94), reached after 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd2, Stockfish 18 recommends 6… e6 for Black. The position is roughly equal (−0.01).

Top engine moves

  1. −0.016… e6 7. Be2 b6 8. cxd5 exd5 9. b4 c6 10. O-O Nbd7 11. Qb3
  2. +0.016… c5 7. dxc5 Nc6 8. Rc1 dxc4 9. Bxc4 Nd7 10. Na4 Nde5 11. Be2
  3. +0.086… c6 7. cxd5 cxd5 8. Qb3 Nc6 9. Bd3 Na5 10. Qa3 b6 11. O-O

Frequently asked questions

What is the best move in the Grünfeld Defense: Opocensky Variation?
After 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd2, Stockfish 18 at depth 18 recommends 6… e6 for Black, continuing 7. Be2 b6 8. cxd5 exd5 9. b4 c6 10. O-O Nbd7 11. Qb3. The position is roughly equal (−0.01). The next best moves are 6… c5 (+0.01) and 6… c6 (+0.08).
Is the Grünfeld Defense: Opocensky Variation a good opening?
Stockfish rates the position at −0.01: the position is roughly equal. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Grünfeld Defense: Opocensky Variation?
D94. ECO codes classify chess openings from A00 to E99; D is the volume for closed and semi-closed games.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).