ECO D49 · Semi-Slav Defense

Semi-Slav Defense: Meran Variation, Stahlberg Variation

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf3

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

13… Qa5+0.00

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

Analyze this position

In the Semi-Slav Defense: Meran Variation, Stahlberg Variation (D49), reached after 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf3, Stockfish 18 recommends 13… Qa5+ for Black. The position is roughly equal (0.00).

Top engine moves

  1. 0.0013… Qa5+ 14. Ke2 Bd6 15. Bd2 Qa6 16. a4 O-O 17. axb5 Qxa1 18. Rxa1
  2. +0.1213… Bb4+ 14. Ke2 Ba6 15. Nc6 Bb7 16. Nxd8 Bxf3+ 17. Kxf3 Kxd8 18. Bxb5
  3. +0.2713… Rb8 14. Nc6 Bb7 15. Bxb5 Nd7 16. a4 Bb4+ 17. Ke2 O-O 18. Nxd8

Frequently asked questions

What is the best move in the Semi-Slav Defense: Meran Variation, Stahlberg Variation?
After 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf3, Stockfish 18 at depth 18 recommends 13… Qa5+ for Black, continuing 14. Ke2 Bd6 15. Bd2 Qa6 16. a4 O-O 17. axb5 Qxa1 18. Rxa1. The position is roughly equal (0.00). The next best moves are 13… Bb4+ (+0.12) and 13… Rb8 (+0.27).
Is the Semi-Slav Defense: Meran Variation, Stahlberg Variation a good opening?
Stockfish rates the position at 0.00: 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: Meran Variation, Stahlberg Variation?
D49. 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+).