ECO A00 · Grob Opening

Grob Opening: Grob Gambit, Keres Gambit

1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3

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

4… Bxg4−1.38

Black is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Grob Opening: Grob Gambit, Keres Gambit (A00), reached after 1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3, Stockfish 18 recommends 4… Bxg4 for Black. Black is clearly better (−1.38).

Top engine moves

  1. −1.384… Bxg4 5. Qb3 Nf6 6. Qxb7 Nbd7 7. cxd4 Rb8 8. Qa6 Bb4+ 9. Nc3
  2. −1.264… Nc6 5. h3 h5 6. g5 Bc5 7. b4 Bd6 8. Nf3 a6 9. a3
  3. −0.924… Nf6 5. g5 Ne4 6. Nf3 dxc3 7. Nxc3 Nxc3 8. bxc3 Bc5 9. h4

Frequently asked questions

What is the best move in the Grob Opening: Grob Gambit, Keres Gambit?
After 1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3, Stockfish 18 at depth 18 recommends 4… Bxg4 for Black, continuing 5. Qb3 Nf6 6. Qxb7 Nbd7 7. cxd4 Rb8 8. Qa6 Bb4+ 9. Nc3. Black is clearly better (−1.38). The next best moves are 4… Nc6 (−1.26) and 4… Nf6 (−0.92).
Is the Grob Opening: Grob Gambit, Keres Gambit a good opening?
Stockfish rates the position at −1.38: black is clearly 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 Grob Opening: Grob Gambit, Keres Gambit?
A00. ECO codes classify chess openings from A00 to E99; A is the volume for flank openings.

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