ECO C02 · French Defense
French Defense: Advance Variation, Paulsen Attack
The position after 1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3.
1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3
French Defense: Advance Variation, Paulsen Attack is filed under ECO C02, a variation of French Defense: Advance Variation. It is the position after 1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 — 9 half-moves in, with Black to move. From here theory names one continuation, Bd7.