Does Semi-Slav Defense: Marshall Gambit work for White at All Ratings?
Snapshot
At All Ratings, Semi-Slav Defense: Marshall Gambit gives White a +10.8% minimum advantage (90% confidence). This gambit is effective.
Semi-Slav Defense: Marshall Gambit
White GambitSource Lichess
View As
Play This+11%All Ratings
Minimum Advantage+10.8%
White wins at least 10.8% more often than loses
Rating TrendPeak: +18.3% at 2500+
Win%53.5%
Games456K
Breakpoint (Overall)Never
4.e4
Semi-Slav Defense: Marshall GambitWhite Gambit
Rating
Time Control
| Rating | Min Adv | White Win | Draw | White Loss | Games |
|---|---|---|---|---|---|
| 0-999 | +6.7% | 53.0% | 3.1% | 43.9% | 4.5K |
| 1000-1199 | +5.6% | 52.3% | 2.6% | 45.2% | 12K |
| 1200-1399 | +6.9% | 52.6% | 2.8% | 44.6% | 22K |
| 1400-1599 | +6.9% | 52.4% | 3.0% | 44.6% | 40K |
| 1600-1799 | +7.3% | 52.3% | 3.4% | 44.4% | 78K |
| 1800-1999 | +9.5% | 53.0% | 3.9% | 43.1% | 132K |
| 2000-2199 | +12.9% | 54.5% | 4.5% | 41.1% | 116K |
| 2200-2499 | +16.9% | 56.2% | 5.3% | 38.5% | 45K |
| 2500+ | +18.3% | 54.8% | 11.0% | 34.2% | 5.2K |
Full Opening StatsSee rating/time-control breakdowns for White on the opening stats page
Analyze Semi-Slav Defense: Marshall Gambit PositionsGet move-by-move win rates with the TrueElo analyzer
Frequently Asked Questions
Is the Semi-Slav Defense: Marshall Gambit sound?
The Semi-Slav Defense: Marshall Gambit has no overall breakpoint in Lichess data, meaning White wins more than loses even at the highest rating brackets across all time controls. This is a statistically sound gambit at all levels analyzed.
What is the Semi-Slav Defense: Marshall Gambit win rate?
The Semi-Slav Defense: Marshall Gambit has a 53.5% (90% CI: 53.4%-53.6%) win rate for White overall, with a 4.0% draw rate and 42.5% loss rate. This is based on 456K games from Lichess.
What is the best rating to play the Semi-Slav Defense: Marshall Gambit?
The Semi-Slav Defense: Marshall Gambit performs best at 2500+, where White has a minimum advantage of +18.3%. This means we're 90% confident White wins at least 18.3 percentage points more than they lose at this rating.
Is the Semi-Slav Defense: Marshall Gambit better in blitz or rapid?
Classical (+15.1% edge) outperforms UltraBullet (+0.8% edge) by 14.3 percentage points. Faster time controls typically favor gambits because opponents have less time to find accurate defenses.
Does the Semi-Slav Defense: Marshall Gambit breakpoint vary by time control?
Yes, significantly. Breakpoints by time control: Bullet: 0-999, Blitz: Never, Rapid: Never, Classical: Never. "Never" means the gambit remains viable through all rating brackets in that time control. Faster time controls typically extend viability.
How sharp is the Semi-Slav Defense: Marshall Gambit?
The Semi-Slav Defense: Marshall Gambit is extremely sharp with only 4.0% draws—96.0% of games end decisively. This makes it an excellent choice when you need to play for a win rather than accept a draw.
Should I play the Semi-Slav Defense: Marshall Gambit?
The Semi-Slav Defense: Marshall Gambit is viable at all rating levels in Lichess data. White maintains a statistical edge throughout. It's an excellent choice if you enjoy sharp, initiative-based play.
How do I defend against the Semi-Slav Defense: Marshall Gambit?
The Semi-Slav Defense: Marshall Gambit is statistically challenging to defend at all levels. As Black, focus on quick development, early castling, and piece trades. Don't get greedy with extra material. Consider declining the gambit or finding a transposition if you're uncomfortable with sharp positions.
How reliable is the Semi-Slav Defense: Marshall Gambit data?
This analysis is based on 456K games from Lichess. All statistics include 90% confidence intervals. Generally, 300+ games provide statistically meaningful results. Rating-specific and time-control-specific breakdowns have their own sample sizes shown in the table above.