French Defense Alekhine Chatard Attack Pin in Chess

In the French Defense Alekhine-Chatard Attack, the “pin” motif arises when White develops with tempo and uses a line piece to restrict a key defender. A defining feature is White’s attacking setup (often with Bg5 and pressure on the kingside) that creates a pin against a more valuable target behind the pinned piece. The pin is tactical: it limits Black’s ability to respond normally, letting White win time or force concessions.