ECO D49 · Semi-Slav Defense

Semi-Slav Defense: Meran Variation, Rellstab Attack

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O Qd5 14. Qe2 Ba6 15. Bg5

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

15… h60.00

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

Analyze this position

In the Semi-Slav Defense: Meran Variation, Rellstab Attack (D49), reached after 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O Qd5 14. Qe2 Ba6 15. Bg5, Stockfish 18 recommends 15… h6 for Black. The position is roughly equal (0.00).

Top engine moves

  1. 0.0015… h6 16. Bh4 Bd6 17. f4 g5 18. Bg3 gxf4 19. Bxf4 Rg8 20. Ng6
  2. +0.0615… Be7 16. a4 O-O 17. axb5 Bb7 18. Qf3 Qxf3 19. Nxf3 h6 20. Bh4
  3. +0.2715… Bd6 16. f4 Bb7 17. Bxb5+ Ke7 18. Bh4 Rhd8 19. Bd3 Kf8 20. a3

Frequently asked questions

What is the best move in the Semi-Slav Defense: Meran Variation, Rellstab Attack?
After 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O Qd5 14. Qe2 Ba6 15. Bg5, Stockfish 18 at depth 18 recommends 15… h6 for Black, continuing 16. Bh4 Bd6 17. f4 g5 18. Bg3 gxf4 19. Bxf4 Rg8 20. Ng6. The position is roughly equal (0.00). The next best moves are 15… Be7 (+0.06) and 15… Bd6 (+0.27).
Is the Semi-Slav Defense: Meran Variation, Rellstab Attack 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, Rellstab Attack?
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+).