The Chelyabinsk Variation is a variation of the Sicilian, Sveshnikov Variation, catalogued as ECO B33. The line runs 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5, reaching the position shown below after 20 half-moves.
Both sides have pawns in the centre (White on e4, Black on e5), and one pawn capture is available, so the structure has not settled yet. Development is level at three minor pieces each. It is White to move after ten moves. Black has doubled pawns on the f-file; Black’s h-file pawn is isolated; Black has the bishop pair.
On the Sicilian, Sveshnikov Variation generally: A sharp, modern Sicilian where Black immediately fights for the center with ...e5. Leads to complex, double-edged positions with weakened d5 vs active piece play.
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The Chelyabinsk Variation goes 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5. It is a variation of the Sicilian, Sveshnikov Variation and is catalogued as ECO B33.
The Chelyabinsk Variation is ECO B33. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian, Sveshnikov Variation.
Stockfish evaluates the position after 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 at +0.42 at depth 18, which is a slight pull for White, within normal opening margins. 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.
Both sides have pawns in the centre (White on e4, Black on e5), and one pawn capture is available, so the structure has not settled yet. Development is level at three minor pieces each. It is White to move. Black has doubled pawns on the f-file; Black’s h-file pawn is isolated; Black has the bishop pair.