D11

Slav Defense: Bonet Gambit

Chess diagram: Slav Defense: Bonet Gambit after 4. Bg5

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

383,986 games: White 47.6% / Draw 5.4% / Black 47.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
128,724129K
56,51357K
48,03548K
43,51344K
28,88829K
26,98627K
25,72126K
15,86916K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 19, 2026

Engine evaluation

−0.24 The position is about equal

Best play: 4... dxc4 5. e3 b5 6. Be2 h6 7. Bh4 e6 8. O-O Bb7 9. b3

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

By rating

The stronger the players, the worse this line does for White: White scores 54% under 1400, 50% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 75K
1400–1799 268K
1800–2199 213K
2200 and up 13K
Masters, over the board 20

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 27, 2026

Overview

Slav Defense: Bonet Gambit (ECO D11, Closed & Semi-Closed Games) is a gambit in the Slav Defense: Modern Line, reached after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5 (4 moves).

In 383,986 rated Lichess games between players rated 1600 to 2500, White won 47.6%, Black 47.0% and 5.4% were drawn. Black's most played move here is 4…e6, in 34% of those games.

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How to play against the Slav Defense: Bonet Gambit

4…dxc4 scores best for Black: 53.9%, with Black winning 51.5% and White 43.7% of 27K games. The most played, 4…e6, scores 48.9% in 129K games, and 4…h6 scores lowest: 46.0%. Stockfish's first choice is also 4…dxc4.

Main answers: those played in at least 5% of these games. Score: Black's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Popularity by year

The Slav Defense: Bonet Gambit has lost ground since 2016: 0.013% of Lichess games in 2025, down from 0.017%.

Numbers by year
YearShare of gamesGames
20160.017%6,223
20170.017%9,586
20180.017%13,293
20190.016%20,530
20200.016%45,986
20210.015%60,328
20220.015%56,528
20230.015%54,820
20240.014%49,020
20250.013%46,355
2026 (Jan–Apr)0.014%14,969

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Cite this page

Caissa Codex. “Slav Defense: Bonet Gambit (D11)”. Lichess data as of 19 Oct 2026. https://chesscodex.org/openings/slav-defense-bonet-gambit