ECO D80 · Grünfeld Defense

Grünfeld Defense: Gibbon Gambit

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. g4

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

4… dxc4−0.59

Black is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Grünfeld Defense: Gibbon Gambit (D80), reached after 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. g4, Stockfish 18 recommends 4… dxc4 for Black. Black is slightly better (−0.59).

Top engine moves

  1. −0.594… dxc4 5. h3 h5 6. g5 Nd5 7. e4 Nxc3 8. bxc3 c5 9. Bxc4
  2. −0.444… Bxg4 5. Qb3 e6 6. cxd5 Nxd5 7. h3 Bf5 8. Bg2 Nc6 9. e4
  3. −0.324… c5 5. Nf3 Bxg4 6. Ne5 Be6 7. Qa4+ Bd7 8. Nxd7 Qxd7 9. dxc5

Frequently asked questions

What is the best move in the Grünfeld Defense: Gibbon Gambit?
After 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. g4, Stockfish 18 at depth 18 recommends 4… dxc4 for Black, continuing 5. h3 h5 6. g5 Nd5 7. e4 Nxc3 8. bxc3 c5 9. Bxc4. Black is slightly better (−0.59). The next best moves are 4… Bxg4 (−0.44) and 4… c5 (−0.32).
Is the Grünfeld Defense: Gibbon Gambit a good opening?
Stockfish rates the position at −0.59: black is slightly better. 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: Gibbon Gambit?
D80. 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+).