Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line
4.3K games from Lichess · Updated January 2026
White expected score · All ratings · All speeds
48.1%
the worst score you would still get, 90% confident. At best 49.3%.
Measured over 4.3K games at this level and clock.
Roughly even — the middlegame decides more than this opening choice does.
Outcomes for White
Draw 7.9 · Score = win + ½ of the draws · 4.3K games
- Rank among the families White can choose here
- not ranked — this is a variation, not a family
- Games in this context
- 4.3K
- Best context
- 47.4% at 2000-2199 Blitz
- Worst context
- 40.4% at 2200-2499 Bullet
- Average game length
- 35 moves
- Games that end decisively
- 92.1%
- Draws
- 7.9%
Best and worst are the strongest and weakest squares with at least 500 games behind them. The table further down shows every square, including thinner ones.
Extra Analysis
Deep-dive datasets for this opening
Where it holds · White score by rating × clock
Green is clearly ahead for White, grey is around even, red is behind. Tap a cell to measure there, and again to clear. It gets better as the rating rises: 40.0% at 1000-1199, 65.5% at 2500+.
| Rating | UB | Bulle | Blitz | Rapid | Class |
|---|---|---|---|---|---|
| 0-999 | — | — | — | — | — |
| 1000-1199 | — | — | — | ||
| 1200-1399 | — | — | — | ||
| 1400-1599 | — | ||||
| 1600-1799 | — | ||||
| 1800-1999 | — | ||||
| 2000-2199 | — | ||||
| 2200-2499 | — | ||||
| 2500+ | — |
Expected score matrix by rating bracket and time control
- 1000-1199 rating, Bullet: 30.0% expected score (1 games)
- 1000-1199 rating, Blitz: 50.0% expected score (2 games)
- 1200-1399 rating, Blitz: 30.0% expected score (1 games)
- 1200-1399 rating, Rapid: 30.0% expected score (1 games)
- 1400-1599 rating, Bullet: 83.4% expected score (3 games)
- 1400-1599 rating, Blitz: 50.0% expected score (5 games)
- 1400-1599 rating, Rapid: 68.2% expected score (4 games)
- 1400-1599 rating, Classical: 50.0% expected score (2 games)
- 1600-1799 rating, Bullet: 56.1% expected score (15 games)
- 1600-1799 rating, Blitz: 37.7% expected score (39 games)
- 1600-1799 rating, Rapid: 73.8% expected score (9 games)
- 1600-1799 rating, Classical: 78.6% expected score (2 games)
- 1800-1999 rating, Bullet: 47.0% expected score (48 games)
- 1800-1999 rating, Blitz: 51.0% expected score (247 games)
- 1800-1999 rating, Rapid: 62.7% expected score (30 games)
- 1800-1999 rating, Classical: 86.4% expected score (4 games)
- 2000-2199 rating, Bullet: 37.4% expected score (125 games)
- 2000-2199 rating, Blitz: 47.4% expected score (770 games)
- 2000-2199 rating, Rapid: 51.6% expected score (96 games)
- 2000-2199 rating, Classical: 61.8% expected score (7 games)
- 2200-2499 rating, Bullet: 40.4% expected score (530 games)
- 2200-2499 rating, Blitz: 46.8% expected score (1,398 games)
- 2200-2499 rating, Rapid: 54.6% expected score (151 games)
- 2200-2499 rating, Classical: 55.3% expected score (8 games)
- 2500+ rating, Bullet: 53.2% expected score (444 games)
- 2500+ rating, Blitz: 52.4% expected score (307 games)
- 2500+ rating, Rapid: 68.5% expected score (31 games)
- 2500+ rating, Classical: 88.1% expected score (9 games)
Related Openings
Methodology
Across every rating and clock, the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line scores 48.1% for White — we are 90% confident the real figure is between 46.8% and 49.3% — from 4.3K Lichess games. Win rate, draw rate and loss rate come from games played December 2023 to November 2025.
How the figures are made
- Whose games these are
- 4.3K+ rated games played on Lichess (2023-12 to 2025-11). The games are Lichess’s and free for anyone to use. What is ours is the reading of them. Last rebuilt January 2026.
- Which games we count
- Rated games only — nothing casual.
- Both players within 200 rating points of each other. A mismatch tells you about the gap, not about the opening.
- At least 2 moves played.
- A game is filed under White’s rating.
- Why every number comes with a range
- A number off a few hundred games is a guess. The same number off millions is a fact. The range is what tells them apart, and it is what the lists rank on — so an opening cannot reach the top on a lucky run of forty games. The more games behind a figure, the narrower its range.
- How much we need before we say anything
- An opening page needs 100 games. A gambit needs 50 games at a rating before we will say whether it pays there. The chaos and trap lists need 500 games overall and 250 games at one rating or clock.
Frequently Asked Questions
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate?
Playing the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line, White wins 44.1%, draws 7.9% and loses 48.0%. Counting a draw as half a point, that is an Expected Score of 48.1%. It rests on 4.3K rated games from Lichess.
At what rating does the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line perform best?
The Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line performs best for White at 2500+, with an Expected Score of 54.0% (791 games) and the highest Floor of any rating with enough games to read.
Is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line better in blitz or rapid?
For White, the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line scores higher in Rapid: an Expected Score of 47.8% in Blitz (2.8K games) against 56.7% in Rapid (322 games).
How sharp is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line?
The Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line has a sharpness score of 92.1 (decisive), meaning 92.1% of games end decisively. Average game length is 35 moves.
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate at 1800-1999?
At 1800-1999, White wins 50.7%, draws 2.9% and loses 46.4%. Counting a draw as half a point, that is an Expected Score of 52.2%. It rests on 329 Lichess games, which average 30 moves.
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate at 2000-2199?
At 2000-2199, White wins 43.8%, draws 5.7% and loses 50.6%. Counting a draw as half a point, that is an Expected Score of 46.6%. It rests on 998 Lichess games, which average 32 moves.
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate at 2200-2499?
At 2200-2499, White wins 42.2%, draws 7.2% and loses 50.7%. Counting a draw as half a point, that is an Expected Score of 45.8%. It rests on 2.1K Lichess games, which average 33 moves.
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate at 2500+?
At 2500+, White wins 46.5%, draws 15.0% and loses 38.5%. Counting a draw as half a point, that is an Expected Score of 54.0%. It rests on 791 Lichess games, which average 46 moves.
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate in Bullet?
In Bullet, White wins 41.4%, draws 8.2% and loses 50.4%. Counting a draw as half a point, that is an Expected Score of 45.5%. It rests on 1.2K Lichess games.
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate in Blitz?
In Blitz, White wins 44.1%, draws 7.5% and loses 48.5%. Counting a draw as half a point, that is an Expected Score of 47.8%. It rests on 2.8K Lichess games.
What is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line win rate in Rapid?
In Rapid, White wins 52.1%, draws 9.1% and loses 38.8%. Counting a draw as half a point, that is an Expected Score of 56.7%. It rests on 322 Lichess games.
Is the Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line a good opening?
The Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line is hard work for White — it favours Black. Across all ratings, White wins 44.1% of its games and loses 48.0%. It performs best at 2500+. Your results depend on your rating, time control, and how well you know the typical plans.