ECO D10 · Slav Defense

Slav Defense: Slav Gambit, Alekhine Attack

1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4

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

4… b5+0.39

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Slav Defense: Slav Gambit, Alekhine Attack (D10), reached after 1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4, Stockfish 18 recommends 4… b5 for Black. White is slightly better (+0.39).

Top engine moves

  1. +0.394… b5 5. a4 b4 6. Nb1 Ba6 7. Qc2 Nf6 8. Nd2 Qxd4 9. Ngf3
  2. +0.524… e5 5. dxe5 Qxd1+ 6. Kxd1 Bc5 7. f4 b5 8. a4 b4 9. Nb1
  3. +0.994… e6 5. Bxc4 b5 6. Bb3 b4 7. Na4 Nf6 8. e5 Nd5 9. Ne2

Frequently asked questions

What is the best move in the Slav Defense: Slav Gambit, Alekhine Attack?
After 1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4, Stockfish 18 at depth 18 recommends 4… b5 for Black, continuing 5. a4 b4 6. Nb1 Ba6 7. Qc2 Nf6 8. Nd2 Qxd4 9. Ngf3. White is slightly better (+0.39). The next best moves are 4… e5 (+0.52) and 4… e6 (+0.99).
Is the Slav Defense: Slav Gambit, Alekhine Attack a good opening?
Stockfish rates the position at +0.39: 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 Slav Defense: Slav Gambit, Alekhine Attack?
D10. 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+).