ECO D45 · Semi-Slav Defense

Semi-Slav Defense: Stoltz Variation, Shabalov Attack

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4

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

7… h6+0.18

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

Analyze this position

In the Semi-Slav Defense: Stoltz Variation, Shabalov Attack (D45), reached after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4, Stockfish 18 recommends 7… h6 for Black. The position is roughly equal (+0.18).

Top engine moves

  1. +0.187… h6 8. h3 e5 9. Bd2 O-O 10. O-O-O e4 11. Nh4 dxc4 12. Nf5
  2. +0.267… dxc4 8. Bxc4 O-O 9. g5 Nd5 10. Ne4 Be7 11. a3 Qc7 12. Bd3
  3. +0.367… Nxg4 8. Rg1 f5 9. h3 Ngf6 10. Rxg7 Ne4 11. Bd2 Nf8 12. Ne5

Frequently asked questions

What is the best move in the Semi-Slav Defense: Stoltz Variation, Shabalov Attack?
After 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4, Stockfish 18 at depth 18 recommends 7… h6 for Black, continuing 8. h3 e5 9. Bd2 O-O 10. O-O-O e4 11. Nh4 dxc4 12. Nf5. The position is roughly equal (+0.18). The next best moves are 7… dxc4 (+0.26) and 7… Nxg4 (+0.36).
Is the Semi-Slav Defense: Stoltz Variation, Shabalov Attack a good opening?
Stockfish rates the position at +0.18: 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 Semi-Slav Defense: Stoltz Variation, Shabalov Attack?
D45. 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+).