Benko Gambit Pin in Chess

A benko gambit pin is a tactical motif that arises from the Benko Gambit, where Black’s pressure on the queenside leads to a pin against a more valuable piece. In many lines, after …b5 and …b4, Black’s pieces (often the bishop or rook on the b-file) line up so that a target piece cannot move without losing something important. The defining feature is the pin created by the Benko structure and piece placement, not by a standalone sacrifice.