The Dragon Variation, Yugoslav Attack, Soltis Variation is a variation of the Sicilian Defense, catalogued as ECO B79. The line runs 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 Bd7 10. O-O-O Qa5 11. h4 Rfc8 12. Bb3 h5, reaching the position shown below after 24 half-moves.
White holds the centre with pawns on e4. Development is level at four minor pieces each. It is White to move after 12 moves. The kings have gone to opposite wings (White queenside, Black kingside), which usually means both sides attack with pawns and the faster attack wins.
On the Sicilian Defense generally: The most popular and aggressive response to 1.e4. Black fights for the center asymmetrically, leading to rich tactical play.
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The Dragon Variation, Yugoslav Attack, Soltis Variation goes 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 Bd7 10. O-O-O Qa5 11. h4 Rfc8 12. Bb3 h5. It is a variation of the Sicilian Defense and is catalogued as ECO B79.
The Dragon Variation, Yugoslav Attack, Soltis Variation is ECO B79. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian Defense.
Stockfish evaluates the position 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 Bd7 10. O-O-O Qa5 11. h4 Rfc8 12. Bb3 h5 at +0.80 at depth 18, which is a small but real edge for White. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
White holds the centre with pawns on e4. Development is level at four minor pieces each. It is White to move. The kings have gone to opposite wings (White queenside, Black kingside), which usually means both sides attack with pawns and the faster attack wins.