Trompowsky Attack: Borg Variation
43K games from Lichess · Updated January 2026
Black expected score · All ratings · All speeds
42.6%
the worst score you would still get, 90% confident. At best 43.0%.
Measured over 43K games at this level and clock.
Black comes out behind here — there are better weapons in the list.
Outcomes for Black
Draw 3.4 · Score = win + ½ of the draws · 43K games
- Rank among the families Black can choose here
- not ranked — this is a variation, not a family
- Games in this context
- 43K
- Best context
- 46.0% at 1600-1799 Rapid
- Worst context
- 40.8% at 2000-2199 Rapid
- Average game length
- 33 moves
- Games that end decisively
- 96.6%
- Draws
- 3.4%
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 · Black score by rating × clock
Green is clearly ahead for Black, grey is around even, red is behind. Tap a cell to measure there, and again to clear. It gets better as the rating rises: 46.3% at 0-999, 49.9% 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
- 0-999 rating, Bullet: 42.2% expected score (43 games)
- 0-999 rating, Blitz: 43.0% expected score (48 games)
- 0-999 rating, Rapid: 53.8% expected score (25 games)
- 1000-1199 rating, Bullet: 44.8% expected score (133 games)
- 1000-1199 rating, Blitz: 48.8% expected score (203 games)
- 1000-1199 rating, Rapid: 48.3% expected score (56 games)
- 1200-1399 rating, UltraBullet: 70.0% expected score (1 games)
- 1200-1399 rating, Bullet: 39.9% expected score (403 games)
- 1200-1399 rating, Blitz: 44.0% expected score (766 games)
- 1200-1399 rating, Rapid: 37.1% expected score (145 games)
- 1200-1399 rating, Classical: 86.4% expected score (4 games)
- 1400-1599 rating, UltraBullet: 21.5% expected score (2 games)
- 1400-1599 rating, Bullet: 43.1% expected score (996 games)
- 1400-1599 rating, Blitz: 43.1% expected score (2,117 games)
- 1400-1599 rating, Rapid: 48.6% expected score (457 games)
- 1400-1599 rating, Classical: 53.7% expected score (26 games)
- 1600-1799 rating, Bullet: 41.7% expected score (1,604 games)
- 1600-1799 rating, Blitz: 44.5% expected score (4,440 games)
- 1600-1799 rating, Rapid: 46.0% expected score (1,013 games)
- 1600-1799 rating, Classical: 63.5% expected score (43 games)
- 1800-1999 rating, Bullet: 41.7% expected score (2,490 games)
- 1800-1999 rating, Blitz: 41.9% expected score (7,486 games)
- 1800-1999 rating, Rapid: 42.7% expected score (1,452 games)
- 1800-1999 rating, Classical: 52.4% expected score (40 games)
- 2000-2199 rating, UltraBullet: 30.0% expected score (1 games)
- 2000-2199 rating, Bullet: 41.7% expected score (2,673 games)
- 2000-2199 rating, Blitz: 42.8% expected score (7,623 games)
- 2000-2199 rating, Rapid: 40.8% expected score (1,047 games)
- 2000-2199 rating, Classical: 49.0% expected score (47 games)
- 2200-2499 rating, Bullet: 42.0% expected score (2,399 games)
- 2200-2499 rating, Blitz: 41.7% expected score (4,602 games)
- 2200-2499 rating, Rapid: 37.0% expected score (356 games)
- 2200-2499 rating, Classical: 18.5% expected score (8 games)
- 2500+ rating, Bullet: 44.7% expected score (447 games)
- 2500+ rating, Blitz: 47.2% expected score (233 games)
- 2500+ rating, Rapid: 57.7% expected score (5 games)
Related Openings
Methodology
Across every rating and clock, the Trompowsky Attack: Borg Variation scores 42.6% for Black — we are 90% confident the real figure is between 42.2% and 43.0% — from 43K 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
- 43K+ 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 Trompowsky Attack: Borg Variation win rate?
Playing the Trompowsky Attack: Borg Variation, Black wins 40.9%, draws 3.4% and loses 55.7%. Counting a draw as half a point, that is an Expected Score of 42.6%. It rests on 43K rated games from Lichess.
At what rating does the Trompowsky Attack: Borg Variation perform best?
The Trompowsky Attack: Borg Variation performs best for Black at 1600-1799, with an Expected Score of 44.2% (7.1K games) and the highest Floor of any rating with enough games to read.
Is the Trompowsky Attack: Borg Variation better in blitz or rapid?
For Black, the Trompowsky Attack: Borg Variation scores about the same in both: an Expected Score of 42.8% in Blitz (28K games) against 43.1% in Rapid (4.6K games).
How sharp is the Trompowsky Attack: Borg Variation?
The Trompowsky Attack: Borg Variation has a sharpness score of 96.6 (very decisive), meaning 96.6% of games end decisively. Average game length is 33 moves.
What is the Trompowsky Attack: Borg Variation win rate at 0-999?
At 0-999, Black wins 43.0%, draws 3.8% and loses 53.2%. Counting a draw as half a point, that is an Expected Score of 44.9%. It rests on 116 Lichess games, which average 28 moves.
What is the Trompowsky Attack: Borg Variation win rate at 1000-1199?
At 1000-1199, Black wins 45.6%, draws 3.4% and loses 51.0%. Counting a draw as half a point, that is an Expected Score of 47.3%. It rests on 392 Lichess games, which average 28 moves.
What is the Trompowsky Attack: Borg Variation win rate at 1200-1399?
At 1200-1399, Black wins 40.9%, draws 2.6% and loses 56.5%. Counting a draw as half a point, that is an Expected Score of 42.2%. It rests on 1.3K Lichess games, which average 29 moves.
What is the Trompowsky Attack: Borg Variation win rate at 1400-1599?
At 1400-1599, Black wins 42.4%, draws 3.0% and loses 54.7%. Counting a draw as half a point, that is an Expected Score of 43.9%. It rests on 3.6K Lichess games, which average 31 moves.
What is the Trompowsky Attack: Borg Variation win rate at 1600-1799?
At 1600-1799, Black wins 42.9%, draws 2.7% and loses 54.5%. Counting a draw as half a point, that is an Expected Score of 44.2%. It rests on 7.1K Lichess games, which average 31 moves.
What is the Trompowsky Attack: Borg Variation win rate at 1800-1999?
At 1800-1999, Black wins 40.5%, draws 2.8% and loses 56.7%. Counting a draw as half a point, that is an Expected Score of 41.9%. It rests on 11K Lichess games, which average 32 moves.
What is the Trompowsky Attack: Borg Variation win rate at 2000-2199?
At 2000-2199, Black wins 40.5%, draws 3.8% and loses 55.8%. Counting a draw as half a point, that is an Expected Score of 42.4%. It rests on 11K Lichess games, which average 34 moves.
What is the Trompowsky Attack: Borg Variation win rate at 2200-2499?
At 2200-2499, Black wins 39.3%, draws 4.5% and loses 56.3%. Counting a draw as half a point, that is an Expected Score of 41.5%. It rests on 7.4K Lichess games, which average 36 moves.
What is the Trompowsky Attack: Borg Variation win rate at 2500+?
At 2500+, Black wins 42.2%, draws 6.9% and loses 50.9%. Counting a draw as half a point, that is an Expected Score of 45.7%. It rests on 685 Lichess games, which average 39 moves.
What is the Trompowsky Attack: Borg Variation win rate in Bullet?
In Bullet, Black wins 40.9%, draws 2.1% and loses 57.0%. Counting a draw as half a point, that is an Expected Score of 42.0%. It rests on 11K Lichess games.
What is the Trompowsky Attack: Borg Variation win rate in Blitz?
In Blitz, Black wins 40.9%, draws 3.7% and loses 55.4%. Counting a draw as half a point, that is an Expected Score of 42.8%. It rests on 28K Lichess games.
What is the Trompowsky Attack: Borg Variation win rate in Rapid?
In Rapid, Black wins 41.0%, draws 4.3% and loses 54.8%. Counting a draw as half a point, that is an Expected Score of 43.1%. It rests on 4.6K Lichess games.
What is the Trompowsky Attack: Borg Variation win rate in Classical?
In Classical, Black wins 49.3%, draws 9.1% and loses 41.6%. Counting a draw as half a point, that is an Expected Score of 53.9%. It rests on 168 Lichess games.
Is the Trompowsky Attack: Borg Variation a good opening?
The Trompowsky Attack: Borg Variation is hard work for Black — it favours White. Across all ratings, Black wins 40.9% of its games and loses 55.7%. It performs best at 1600-1799. Your results depend on your rating, time control, and how well you know the typical plans.