ECO D19 · Slav Defense

Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation

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 Ne4 10. g4

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

10… Bg6+0.40

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation (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 Ne4 10. g4, Stockfish 18 recommends 10… Bg6 for Black. White is slightly better (+0.40).

Top engine moves

  1. +0.4010… Bg6 11. Ne5 Nxc3 12. bxc3 Bxc3 13. Nxg6 hxg6 14. Rb1 Qe7 15. f4
  2. +1.4910… Nxc3 11. bxc3 Bxg4 12. cxb4 Qf6 13. Kg2 Qh6 14. h4 Qg6 15. e4
  3. +1.7810… Bxc3 11. gxf5 Bb4 12. fxe6 fxe6 13. Bxe6+ Kh8 14. Ne5 Bd6 15. f4

Frequently asked questions

What is the best move in the Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation?
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 Ne4 10. g4, Stockfish 18 at depth 18 recommends 10… Bg6 for Black, continuing 11. Ne5 Nxc3 12. bxc3 Bxc3 13. Nxg6 hxg6 14. Rb1 Qe7 15. f4. White is slightly better (+0.40). The next best moves are 10… Nxc3 (+1.49) and 10… Bxc3 (+1.78).
Is the Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation a good opening?
Stockfish rates the position at +0.40: white is slightly 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 Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation?
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+).