B77

Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line

Chess diagram: Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line after 9. Bc4

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Statistics from Lichess

970,424 games: White 50.6% / Draw 5.2% / Black 44.2%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
Sicilian Defense: Dragon Variation, Yugoslav Attack 559,097559K
118,420118K
87,99588K
63,03463K
33,22533K
Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation 32,04632K
16,59217K
13,41313K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

+0.49 White is slightly better

Best play: 9... Nxd4 10. Bxd4 Be6 11. Bxe6 fxe6 12. O-O-O Qa5 13. Rhe1 Nd7 14. Bxg7

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 57% under 1400, 50% at 2200 and up and 59% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 8,652
1400–1799 144K
1800–2199 613K
2200 and up 245K
Masters, over the board 5,973

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

Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line (ECO B77, Semi-Open Games) is a variation of the Sicilian Defense: Dragon Variation, Yugoslav Attack, reached after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 (9 moves).

In 970,424 rated Lichess games between players rated 1600 to 2500, White won 50.6%, Black 44.2% and 5.2% were drawn. Black's most played move here is 9…Bd7, in 58% of those games.

It branches into 2 named variations; the most played are Sicilian Defense: Dragon Variation, Yugoslav Attack and Sicilian Defense: Dragon Variation, Yugoslav Attack, Byrne Variation. In all, 9 named lines continue from it.

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How to play against the Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line

The most played answer, 9…Bd7 (Sicilian Defense: Dragon Variation, Yugoslav Attack), also scores best for Black: 50.7%, with Black winning 48.1% and White 46.6% of 559K games. Of the main answers, 9…a6 scores lowest: 37.3%. Stockfish's first choice is 9…Nxd4.

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 Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line has lost ground since 2016: 0.029% of Lichess games in 2025, down from 0.045% (its peak: 0.056% in 2018).

Numbers by year
YearShare of gamesGames
20160.045%15,940
20170.051%28,253
20180.056%44,110
20190.048%60,348
20200.053%156,438
20210.041%160,125
20220.035%130,066
20230.032%118,561
20240.031%111,249
20250.029%100,151
2026 (Jan–Apr)0.028%30,978

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

Variations (2)

Transpositions

All 9 named lines that continue from here

Cite this page

Caissa Codex. “Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line (B77)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/sicilian-defense-dragon-variation-yugoslav-attack-main-line