The Anti-Sveshnikov, 6.Nf3 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. Nf3, reaching the position shown below after 11 half-moves.
Both sides have pawns in the centre (White on e4, Black on e5). Development is level at two minor pieces each. It is Black to move after six moves.
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 Anti-Sveshnikov, 6.Nf3 goes 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3. It is a variation of the Sicilian, Sveshnikov Variation and is catalogued as ECO B33.
The Anti-Sveshnikov, 6.Nf3 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. Nf3 at -0.22 at depth 18, which is balanced. 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). Development is level at two minor pieces each. It is Black to move.