French Defense Advance Variation Pin in Chess

In the French Defense Advance Variation, White’s defining move is 3.e5, gaining space and often fixing Black’s queenside pieces. A “french defense advance variation pin” appears when that space and pawn structure allow White to pin a Black piece (commonly along a file or diagonal) so it can’t move without losing material or allowing a decisive tactic. The pin is typically tied to the Advance’s central control and the resulting piece alignment.