ECO A00 · Polish Opening

Polish Opening: Bugayev Advance Variation

1. b4 e5 2. Bb2 f6 3. b5

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

3… d5−0.22

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

Analyze this position

In the Polish Opening: Bugayev Advance Variation (A00), reached after 1. b4 e5 2. Bb2 f6 3. b5, Stockfish 18 recommends 3… d5 for Black. The position is roughly equal (−0.22).

Top engine moves

  1. −0.223… d5 4. e3 c5 5. f4 Bd6 6. fxe5 fxe5 7. Bxe5 Nf6 8. Bxd6
  2. −0.133… a6 4. a4 d5 5. e3 axb5 6. axb5 Rxa1 7. Bxa1 c5 8. bxc6
  3. +0.023… c6 4. e3 d5 5. c4 Be6 6. bxc6 Nxc6 7. cxd5 Bxd5 8. Nc3

Frequently asked questions

What is the best move in the Polish Opening: Bugayev Advance Variation?
After 1. b4 e5 2. Bb2 f6 3. b5, Stockfish 18 at depth 18 recommends 3… d5 for Black, continuing 4. e3 c5 5. f4 Bd6 6. fxe5 fxe5 7. Bxe5 Nf6 8. Bxd6. The position is roughly equal (−0.22). The next best moves are 3… a6 (−0.13) and 3… c6 (+0.02).
Is the Polish Opening: Bugayev Advance Variation a good opening?
Stockfish rates the position at −0.22: 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 Polish Opening: Bugayev Advance Variation?
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+).