ECO A58 · Benko Gambit

Benko Gambit: Fianchetto Variation

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3

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

8… Bg7+0.54

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Benko Gambit: Fianchetto Variation (A58), reached after 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3, Stockfish 18 recommends 8… Bg7 for Black. White is slightly better (+0.54).

Top engine moves

  1. +0.548… Bg7 9. Bh3 Nbd7 10. O-O O-O 11. Re1 h5 12. Rb1 Ng4 13. Qc2
  2. +0.588… Qa5 9. Bd2 Bg7 10. a4 O-O 11. e4 Qb6 12. Bxa6 Nxa6 13. O-O
  3. +0.618… Nbd7 9. e4 Qb6 10. a4 Bg7 11. a5 Qb7 12. Be2 c4 13. Nd2

Frequently asked questions

What is the best move in the Benko Gambit: Fianchetto Variation?
After 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3, Stockfish 18 at depth 18 recommends 8… Bg7 for Black, continuing 9. Bh3 Nbd7 10. O-O O-O 11. Re1 h5 12. Rb1 Ng4 13. Qc2. White is slightly better (+0.54). The next best moves are 8… Qa5 (+0.58) and 8… Nbd7 (+0.61).
Is the Benko Gambit: Fianchetto Variation a good opening?
Stockfish rates the position at +0.54: 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: Fianchetto Variation?
A58. 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+).