Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nd7
The Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation is a chess opening classified as ECO B77, reached after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nd7. It is a line of the Sicilian Defense. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 1 times by this move order. White won 0%, 0% were drawn and Black won 100%. The most popular continuation is 10. h4 (100% of games).
Engine evaluation: +0.84 (Stockfish, depth 48; best line 10. h4 Nxd4 11. Bxd4 Bxd4 12. Qxd4 Nf6)
- ECO
- B77
- Moves
- 18 plies
- FEN
r1bq1rk1/pp1nppbp/2np2p1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ - 5 10- PGN
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nd7
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 2000+ | 1 | |
| All | 1 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 10. h4 | 1 (100%) |
Master games
21 over-the-board games are classified under this line (White 43%, draw 24%, Black 33%). The strongest:
- GM Thomas Ernst (2369) – FM Deniz Arman (2369) 1/2-1/2 · Elite Hotels Vaxjo Open · 2018-02-11
- FM Alexander Pena Riasco (2242) – FM Abel Carrascoso Morales (2342) 1-0 · 48th Mislata Open 2014 · 2014-08-16
- WIM Mara Jelica (2170) – WGM Iva Videnova-Kuljasevic (2388) 1/2-1/2 · TCh-CRO w 2014 · 2014-10-08
- Robert Schuermans (2128) – IM Stephane Hautot (2402) 0-1 · Pays de Charleroi Open · 2016-08-02
- Ilimbek Esenbek Uulu (2150) – FM Ariel Tokman (2316) 0-1 · Titled Tuesday 17th Aug · 2021-08-17
Highest-rated Lichess games
- Millancito76 (2280) – IM calito1969 (2445) 0-1 · 2026-09-07 · 180 + 0s
Comes from
Sicilian Defense: Dragon Variation, Yugoslav Attack, Belezky Line 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6
More Sicilian Defense lines (all)
- Sicilian Defense (1. e4 c5) B20
- Sicilian Defense: Amazon Attack B20
- Sicilian Defense: Big Clamp Formation B20
- Sicilian Defense: Bowdler Attack B20
- Sicilian Defense: Brick Variation B20
- Sicilian Defense: Czerniak Attack B20
- Sicilian Defense: Czerniak Attack, Queen Fianchetto Variation B20
- Sicilian Defense: Euwe Attack, Prins Gambit B20
- Sicilian Defense: Gloria Variation B20
- Sicilian Defense: Grob Variation B20
- Sicilian Defense: Keres Variation B20
- Sicilian Defense: King David's Opening B20
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.