ECO C16 · French Defense
French Defense: Winawer Variation, Advance Variation
The position after 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5.
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5
French Defense: Winawer Variation, Advance Variation is filed under ECO C16, a variation of French Defense: Winawer Variation. It is the position after 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 — 7 half-moves in, with Black to move. From here theory names one continuation, Qd7.