ECO D11 · Slav Defense

Slav Defense: Bonet Gambit

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5

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

4… dxc4−0.38

Black is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Slav Defense: Bonet Gambit (D11), reached after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5, Stockfish 18 recommends 4… dxc4 for Black. Black is slightly better (−0.38).

Top engine moves

  1. −0.384… dxc4 5. Nc3 h6 6. Bh4 b5 7. e4 g5 8. Bg3 Bg7 9. h4
  2. −0.204… Ne4 5. Bf4 dxc4 6. Qc2 Bf5 7. g4 Bg6 8. Qxc4 Qb6 9. Qb3
  3. 0.004… h6 5. Bxf6 exf6 6. e3 dxc4 7. Bxc4 Bd6 8. O-O Nd7 9. Qc2

Frequently asked questions

What is the best move in the Slav Defense: Bonet Gambit?
After 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5, Stockfish 18 at depth 18 recommends 4… dxc4 for Black, continuing 5. Nc3 h6 6. Bh4 b5 7. e4 g5 8. Bg3 Bg7 9. h4. Black is slightly better (−0.38). The next best moves are 4… Ne4 (−0.20) and 4… h6 (0.00).
Is the Slav Defense: Bonet Gambit a good opening?
Stockfish rates the position at −0.38: black 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 Slav Defense: Bonet Gambit?
D11. ECO codes classify chess openings from A00 to E99; D is the volume for closed and semi-closed games.

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