ECO A57 · Benko Gambit

Benko Gambit: Mutkin Countergambit

1. d4 Nf6 2. c4 c5 3. d5 b5 4. g4

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

4… Nxg4−0.27

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

Analyze this position

In the Benko Gambit: Mutkin Countergambit (A57), reached after 1. d4 Nf6 2. c4 c5 3. d5 b5 4. g4, Stockfish 18 recommends 4… Nxg4 for Black. The position is roughly equal (−0.27).

Top engine moves

  1. −0.274… Nxg4 5. cxb5 g6 6. a4 Bg7 7. h3 Nf6 8. a5 O-O 9. Nf3
  2. −0.094… bxc4 5. g5 Nh5 6. e4 g6 7. Bxc4 d6 8. Nc3 Nd7 9. Be2
  3. +0.094… h6 5. cxb5 a6 6. bxa6 e6 7. Nc3 exd5 8. Bg2 Rxa6 9. Nxd5

Frequently asked questions

What is the best move in the Benko Gambit: Mutkin Countergambit?
After 1. d4 Nf6 2. c4 c5 3. d5 b5 4. g4, Stockfish 18 at depth 18 recommends 4… Nxg4 for Black, continuing 5. cxb5 g6 6. a4 Bg7 7. h3 Nf6 8. a5 O-O 9. Nf3. The position is roughly equal (−0.27). The next best moves are 4… bxc4 (−0.09) and 4… h6 (+0.09).
Is the Benko Gambit: Mutkin Countergambit a good opening?
Stockfish rates the position at −0.27: 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 Benko Gambit: Mutkin Countergambit?
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+).