Slav Defense: Czech Variation, Lasker Variation
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Na6
The Slav Defense: Czech Variation, Lasker Variation is a chess opening classified as ECO D18, reached after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Na6. It is a line of the Slav Defense. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 6 times by this move order. White won 33%, 0% were drawn and Black won 67%. The most popular continuation is 7. Bxc4 (83% of games).
Engine evaluation: +0.71 (Stockfish, depth 40; best line 7. Bxc4 Nb4 8. O-O e6 9. Qe2 Be7)
- ECO
- D18
- Moves
- 12 plies
- FEN
r2qkb1r/pp2pppp/n1p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R w KQkq - 1 7- PGN
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Na6
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 2000+ | 6 | |
| All | 6 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 7. Bxc4 | 5 (83%) | |
| 7. Na2 | 1 (17%) |
Master games
9 over-the-board games are classified under this line (White 44%, draw 34%, Black 22%). The strongest:
- GM Erwin L'Ami (2605) – IM Yiye Wang (2433) 1-0 · Reykjavik Open 2015 · 2015-03-11
- IM Justin Sarkar (2428) – Dennis Brokken (2302) 0-1 · 16th Prague Open 2017 · 2017-01-19
- IM Nathan Birnboim (2365) – FM Adolf Herzog (2337) 1-0 · World Senior Teams +65 · 2019-04-18
- FM Evgeni Kobylkin (2335) – IM Andrejs Strebkovs (2262) 1/2-1/2 · Lagan Spring IM 2019 · 2019-04-04
- GM Evgeniy Podolchenko (2398) – Dmitry Budkovsky (2042) 1/2-1/2 · TCh-BLR 2017 · 2017-05-08
Search all games of the Slav Defense: Czech Variation, Lasker Variation and its sub-variations
Highest-rated Lichess games
- Luciano27 (2528) – rustevs (2507) 1-0 · 2026-09-03 · 180 + 2s
- desx (2318) – Hazem01144 (2258) 1-0 · 2026-09-05 · 180 + 0s
- BES_ALEX_1971_ba (2276) – AdygzhyKuular (2240) 0-1 · 2026-09-04 · 180 + 2s
Comes from
Slav Defense: Czech Variation, Classical System 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3
More Slav Defense lines (all)
- Slav Defense (2. c4 c6) D10
- Slav Defense (2… c6 3. Nc3) D10
- Slav Defense (3. Nc3 dxc4) D10
- Slav Defense: Diemer Gambit D10
- Slav Defense: Exchange Variation (2… c6 3. cxd5) D10
- Slav Defense: Exchange Variation, Boor Attack D10
- Slav Defense: Slav Gambit, Alekhine Attack D10
- Slav Defense: Winawer Countergambit D10
- Slav Defense: Winawer Countergambit, Anti-Winawer Gambit D10
- Slav Defense: Bonet Gambit D11
- Slav Defense: Breyer Variation D11
- Slav Defense: Modern Line (2… c6 3. Nf3) D11
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.