Duras Gambit Pin in Chess

A “duras gambit pin” is the tactical motif that arises in the Duras Gambit, where a piece is pinned to a more valuable target (often the king or a major piece) after the gambit’s central and diagonal pressure develops. The defining feature is that the gambit’s pawn sacrifice opens lines so an attacker can immobilize the defender—commonly along a file or diagonal created by the gambit’s move order.