The with Nc6 is a variation of the Caro-Kann, Panov-Botvinnik Attack, catalogued as ECO B13. The line runs 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3, reaching the position shown below after 11 half-moves.
Both sides have pawns in the centre (White on d4, Black on d5), and one pawn capture is available, so the structure has not settled yet. Development is level at two minor pieces each. It is Black to move after six moves.
On the Caro-Kann, Panov-Botvinnik Attack generally: White transforms the Caro-Kann into an isolated queen's pawn position with c4. A dynamic approach that creates open piece play.
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See all 11 Caro-Kann, Panov-Botvinnik Attack variations →
The with Nc6 goes 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3. It is a variation of the Caro-Kann, Panov-Botvinnik Attack and is catalogued as ECO B13.
The with Nc6 is ECO B13. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Caro-Kann, Panov-Botvinnik Attack.
Stockfish evaluates the position after 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 at +0.17 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 d4, Black on d5), and one pawn capture is available, so the structure has not settled yet. Development is level at two minor pieces each. It is Black to move.