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Slav Defense: Bonet Gambit

192K games from Lichess · Updated January 2026

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Analyze this line move by move

White expected score · All ratings · All speeds

52.0%

45%60%
Floor51.8%

the worst score you would still get, 90% confident. At best 52.2%.

Measured over 192K games at this level and clock.

Playablewins about as often as it loses at this level

Roughly even — the middlegame decides more than this opening choice does.

Outcomes for White

Draw 4.5 · Score = win + ½ of the draws · 192K games

Rank among the families White can choose here
not ranked — this is a variation, not a family
Games in this context
192K
Best context
54.5% at 2500+ Bullet
Worst context
50.5% at 1800-1999 Rapid
Average game length
35 moves
Games that end decisively
95.5%
Draws
4.5%

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

Gambit BreakpointWhite

Peak: +4.6% · Breakpoint: Never

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: 52.1% at 0-999, 60.4% at 2500+.

RatingUBBulleBlitzRapidClass
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: 54.2% expected score (609 games)
  • 0-999 rating, Blitz: 52.9% expected score (833 games)
  • 0-999 rating, Rapid: 49.2% expected score (180 games)
  • 1000-1199 rating, UltraBullet: 78.6% expected score (2 games)
  • 1000-1199 rating, Bullet: 52.3% expected score (2,443 games)
  • 1000-1199 rating, Blitz: 51.1% expected score (3,757 games)
  • 1000-1199 rating, Rapid: 51.4% expected score (928 games)
  • 1000-1199 rating, Classical: 35.7% expected score (9 games)
  • 1200-1399 rating, UltraBullet: 46.0% expected score (11 games)
  • 1200-1399 rating, Bullet: 52.9% expected score (5,220 games)
  • 1200-1399 rating, Blitz: 52.4% expected score (9,131 games)
  • 1200-1399 rating, Rapid: 52.7% expected score (2,326 games)
  • 1200-1399 rating, Classical: 63.3% expected score (36 games)
  • 1400-1599 rating, UltraBullet: 39.1% expected score (44 games)
  • 1400-1599 rating, Bullet: 53.7% expected score (10,759 games)
  • 1400-1599 rating, Blitz: 52.5% expected score (18,473 games)
  • 1400-1599 rating, Rapid: 51.7% expected score (4,837 games)
  • 1400-1599 rating, Classical: 50.3% expected score (184 games)
  • 1600-1799 rating, UltraBullet: 51.9% expected score (78 games)
  • 1600-1799 rating, Bullet: 51.5% expected score (13,875 games)
  • 1600-1799 rating, Blitz: 52.1% expected score (27,519 games)
  • 1600-1799 rating, Rapid: 51.0% expected score (6,455 games)
  • 1600-1799 rating, Classical: 45.9% expected score (303 games)
  • 1800-1999 rating, UltraBullet: 55.7% expected score (43 games)
  • 1800-1999 rating, Bullet: 52.0% expected score (16,319 games)
  • 1800-1999 rating, Blitz: 51.6% expected score (28,137 games)
  • 1800-1999 rating, Rapid: 50.5% expected score (5,894 games)
  • 1800-1999 rating, Classical: 49.0% expected score (250 games)
  • 2000-2199 rating, UltraBullet: 45.3% expected score (9 games)
  • 2000-2199 rating, Bullet: 51.8% expected score (11,177 games)
  • 2000-2199 rating, Blitz: 52.1% expected score (10,613 games)
  • 2000-2199 rating, Rapid: 51.1% expected score (2,570 games)
  • 2000-2199 rating, Classical: 61.2% expected score (57 games)
  • 2200-2499 rating, UltraBullet: 32.4% expected score (7 games)
  • 2200-2499 rating, Bullet: 50.8% expected score (5,242 games)
  • 2200-2499 rating, Blitz: 53.3% expected score (2,498 games)
  • 2200-2499 rating, Rapid: 53.9% expected score (374 games)
  • 2200-2499 rating, Classical: 71.8% expected score (10 games)
  • 2500+ rating, Bullet: 54.5% expected score (677 games)
  • 2500+ rating, Blitz: 53.6% expected score (110 games)
  • 2500+ rating, Rapid: 73.1% expected score (5 games)

Related Openings

Parent
Slav Defense
50.8%
Variations (5)
Slav Defense: Exchange Variation
50.4%
Slav Defense: Three Knights Variation
51.1%
Slav Defense: Modern Line
51.9%
Slav Defense: Quiet Variation, Pin Defense
49.6%
Slav Defense: Slav Gambit, Alekhine Attack
52.8%
Analyze Slav Defense: Bonet Gambit PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Slav Defense: Bonet Gambit scores 52.0% for White — we are 90% confident the real figure is between 51.8% and 52.2% — from 192K 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
192K+ 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: Bonet Gambit win rate?

Playing the Slav Defense: Bonet Gambit, White wins 49.7%, draws 4.5% and loses 45.8%. Counting a draw as half a point, that is an Expected Score of 52.0%. It rests on 192K rated games from Lichess.

At what rating does the Slav Defense: Bonet Gambit perform best?

The Slav Defense: Bonet Gambit performs best for White at 1400-1599, with an Expected Score of 52.8% (34K games) and the highest Floor of any rating with enough games to read.

Is the Slav Defense: Bonet Gambit better in blitz or rapid?

For White, the Slav Defense: Bonet Gambit scores about the same in both: an Expected Score of 52.1% in Blitz (101K games) against 51.3% in Rapid (24K games).

How sharp is the Slav Defense: Bonet Gambit?

The Slav Defense: Bonet Gambit has a sharpness score of 95.5 (very decisive), meaning 95.5% of games end decisively. Average game length is 35 moves.

What is the Slav Defense: Bonet Gambit win rate at 0-999?

At 0-999, White wins 51.5%, draws 2.8% and loses 45.7%. Counting a draw as half a point, that is an Expected Score of 52.9%. It rests on 1.6K Lichess games, which average 27 moves.

What is the Slav Defense: Bonet Gambit win rate at 1000-1199?

At 1000-1199, White wins 50.1%, draws 2.9% and loses 47.0%. Counting a draw as half a point, that is an Expected Score of 51.6%. It rests on 7.1K Lichess games, which average 30 moves.

What is the Slav Defense: Bonet Gambit win rate at 1200-1399?

At 1200-1399, White wins 51.0%, draws 3.2% and loses 45.8%. Counting a draw as half a point, that is an Expected Score of 52.6%. It rests on 17K Lichess games, which average 31 moves.

What is the Slav Defense: Bonet Gambit win rate at 1400-1599?

At 1400-1599, White wins 50.9%, draws 3.7% and loses 45.4%. Counting a draw as half a point, that is an Expected Score of 52.8%. It rests on 34K Lichess games, which average 33 moves.

What is the Slav Defense: Bonet Gambit win rate at 1600-1799?

At 1600-1799, White wins 49.6%, draws 4.2% and loses 46.2%. Counting a draw as half a point, that is an Expected Score of 51.7%. It rests on 48K Lichess games, which average 35 moves.

What is the Slav Defense: Bonet Gambit win rate at 1800-1999?

At 1800-1999, White wins 49.0%, draws 5.2% and loses 45.8%. Counting a draw as half a point, that is an Expected Score of 51.6%. It rests on 51K Lichess games, which average 37 moves.

What is the Slav Defense: Bonet Gambit win rate at 2000-2199?

At 2000-2199, White wins 49.2%, draws 5.3% and loses 45.5%. Counting a draw as half a point, that is an Expected Score of 51.9%. It rests on 24K Lichess games, which average 38 moves.

What is the Slav Defense: Bonet Gambit win rate at 2200-2499?

At 2200-2499, White wins 48.8%, draws 5.7% and loses 45.4%. Counting a draw as half a point, that is an Expected Score of 51.7%. It rests on 8.1K Lichess games, which average 39 moves.

What is the Slav Defense: Bonet Gambit win rate at 2500+?

At 2500+, White wins 51.4%, draws 6.4% and loses 42.3%. Counting a draw as half a point, that is an Expected Score of 54.6%. It rests on 792 Lichess games, which average 42 moves.

What is the Slav Defense: Bonet Gambit win rate in UltraBullet?

In UltraBullet, White wins 47.8%, draws 1.8% and loses 50.4%. Counting a draw as half a point, that is an Expected Score of 48.7%. It rests on 194 Lichess games.

What is the Slav Defense: Bonet Gambit win rate in Bullet?

In Bullet, White wins 50.5%, draws 3.3% and loses 46.2%. Counting a draw as half a point, that is an Expected Score of 52.2%. It rests on 66K Lichess games.

What is the Slav Defense: Bonet Gambit win rate in Blitz?

In Blitz, White wins 49.6%, draws 4.9% and loses 45.5%. Counting a draw as half a point, that is an Expected Score of 52.1%. It rests on 101K Lichess games.

What is the Slav Defense: Bonet Gambit win rate in Rapid?

In Rapid, White wins 48.5%, draws 5.5% and loses 46.0%. Counting a draw as half a point, that is an Expected Score of 51.3%. It rests on 24K Lichess games.

What is the Slav Defense: Bonet Gambit win rate in Classical?

In Classical, White wins 46.3%, draws 7.0% and loses 46.7%. Counting a draw as half a point, that is an Expected Score of 49.8%. It rests on 849 Lichess games.

Is the Slav Defense: Bonet Gambit a good opening?

The Slav Defense: Bonet Gambit is about level. Across all ratings, White wins 49.7% of its games and loses 45.8%. It performs best at 1400-1599. Your results depend on your rating, time control, and how well you know the typical plans.