ECO A57 · Benko Gambit Accepted

Benko Gambit Accepted: Modern Variation

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3

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

5… axb5+0.61

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Benko Gambit Accepted: Modern Variation (A57), reached after 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3, Stockfish 18 recommends 5… axb5 for Black. White is slightly better (+0.61).

Top engine moves

  1. +0.615… axb5 6. Bxb5 Qa5+ 7. Nc3 Bb7 8. Bd2 Qb6 9. Qf3 e6 10. e4
  2. +0.615… Bb7 6. Nc3 axb5 7. Bxb5 Qa5 8. Bd2 Qb6 9. Qf3 e6 10. e4
  3. +0.715… e6 6. dxe6 fxe6 7. Nf3 d5 8. Nc3 Nbd7 9. bxa6 Bd6 10. Nb5

Frequently asked questions

What is the best move in the Benko Gambit Accepted: Modern Variation?
After 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3, Stockfish 18 at depth 18 recommends 5… axb5 for Black, continuing 6. Bxb5 Qa5+ 7. Nc3 Bb7 8. Bd2 Qb6 9. Qf3 e6 10. e4. White is slightly better (+0.61). The next best moves are 5… Bb7 (+0.61) and 5… e6 (+0.71).
Is the Benko Gambit Accepted: Modern Variation a good opening?
Stockfish rates the position at +0.61: 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 Benko Gambit Accepted: Modern Variation?
A57. 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+).