ECO B06 · Rat Defense

Rat Defense: Accelerated Gurgenidze

1. e4 g6 2. d4 d6 3. Nc3 c6

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

4. Be2+0.65

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Rat Defense: Accelerated Gurgenidze (B06), reached after 1. e4 g6 2. d4 d6 3. Nc3 c6, Stockfish 18 recommends 4. Be2 for White. White is slightly better (+0.65).

Top engine moves

  1. +0.654. Be2 Bg7 5. a4 Qc7 6. h4 h5 7. a5 Nf6 8. Nf3 Bg4
  2. +0.644. a4 Bg7 5. Be2 Qc7 6. h4 h5 7. a5 Nf6 8. Nf3 Bg4
  3. +0.614. h4 Nf6 5. Be2 h5 6. Nf3 Bg7 7. O-O O-O 8. a4 Nh7

Frequently asked questions

What is the best move in the Rat Defense: Accelerated Gurgenidze?
After 1. e4 g6 2. d4 d6 3. Nc3 c6, Stockfish 18 at depth 18 recommends 4. Be2 for White, continuing Bg7 5. a4 Qc7 6. h4 h5 7. a5 Nf6 8. Nf3 Bg4. White is slightly better (+0.65). The next best moves are 4. a4 (+0.64) and 4. h4 (+0.61).
Is the Rat Defense: Accelerated Gurgenidze a good opening?
Stockfish rates the position at +0.65: white 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 Rat Defense: Accelerated Gurgenidze?
B06. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).

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