Slav Defense: Czech Variation, Classical System, Main Line
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2
9… c5+0.27
The position is roughly equal. Stockfish 18, depth 18.
Analyze this positionIn the Slav Defense: Czech Variation, Classical System, Main Line (D19), reached after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2, Stockfish 18 recommends 9… c5 for Black. The position is roughly equal (+0.27).
Top engine moves
- +0.279… c5 10. e4 Bg6 11. d5 Bxc3 12. dxe6 Bd4 13. e5 Ne4 14. Nxd4
- +0.389… Bg6 10. Ne5 Nbd7 11. Nxg6 hxg6 12. Rd1 Qa5 13. e4 Bxc3 14. bxc3
- +0.419… h6 10. e4 Bh7 11. Bd3 c5 12. Rd1 Nc6 13. d5 exd5 14. exd5
Frequently asked questions
What is the best move in the Slav Defense: Czech Variation, Classical System, Main Line?
After 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2, Stockfish 18 at depth 18 recommends 9… c5 for Black, continuing 10. e4 Bg6 11. d5 Bxc3 12. dxe6 Bd4 13. e5 Ne4 14. Nxd4. The position is roughly equal (+0.27). The next best moves are 9… Bg6 (+0.38) and 9… h6 (+0.41).
Is the Slav Defense: Czech Variation, Classical System, Main Line a good opening?
Stockfish rates the position at +0.27: 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 Slav Defense: Czech Variation, Classical System, Main Line?
D19. 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+).