ECO A00 · Van Geet Opening

Van Geet Opening: Twyble Attack

1. Nc3 c5 2. Rb1

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

2… d5−0.46

Black is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Van Geet Opening: Twyble Attack (A00), reached after 1. Nc3 c5 2. Rb1, Stockfish 18 recommends 2… d5 for Black. Black is slightly better (−0.46).

Top engine moves

  1. −0.462… d5 3. e3 e6 4. d4 Nf6 5. Nf3 a6 6. g3 Be7 7. Bg2
  2. −0.212… a6 3. e4 b5 4. Nf3 Bb7 5. d3 e6 6. g3 Be7 7. Bg2
  3. −0.122… e6 3. e4 a6 4. Nf3 b5 5. d4 cxd4 6. Nxd4 Qc7 7. Bd3

Frequently asked questions

What is the best move in the Van Geet Opening: Twyble Attack?
After 1. Nc3 c5 2. Rb1, Stockfish 18 at depth 18 recommends 2… d5 for Black, continuing 3. e3 e6 4. d4 Nf6 5. Nf3 a6 6. g3 Be7 7. Bg2. Black is slightly better (−0.46). The next best moves are 2… a6 (−0.21) and 2… e6 (−0.12).
Is the Van Geet Opening: Twyble Attack a good opening?
Stockfish rates the position at −0.46: 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 Van Geet Opening: Twyble Attack?
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+).