ECO D44 · Semi-Slav Defense

Semi-Slav Defense: Botvinnik Variation, Alatortsev System

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd5

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

10. Nxf7+1.27

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Semi-Slav Defense: Botvinnik Variation, Alatortsev System (D44), reached after 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd5, Stockfish 18 recommends 10. Nxf7 for White. White is clearly better (+1.27).

Top engine moves

  1. +1.2710. Nxf7 Qxh4 11. Nxh8 Bb4 12. Rc1 c5 13. dxc5 Nd7 14. Be2 Nxe5
  2. +0.6310. Nf3 Qa5 11. Rc1 Bb7 12. Be2 Nxc3 13. bxc3 c5 14. O-O Rg8
  3. −1.8510. Qh5 hxg5 11. Qxh8 gxh4 12. Be2 Nxc3 13. bxc3 Qg5 14. g4 Nd7

Frequently asked questions

What is the best move in the Semi-Slav Defense: Botvinnik Variation, Alatortsev System?
After 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd5, Stockfish 18 at depth 18 recommends 10. Nxf7 for White, continuing Qxh4 11. Nxh8 Bb4 12. Rc1 c5 13. dxc5 Nd7 14. Be2 Nxe5. White is clearly better (+1.27). The next best moves are 10. Nf3 (+0.63) and 10. Qh5 (−1.85).
Is the Semi-Slav Defense: Botvinnik Variation, Alatortsev System a good opening?
Stockfish rates the position at +1.27: white is clearly 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 Semi-Slav Defense: Botvinnik Variation, Alatortsev System?
D44. 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+).