Benko Gambit Accepted Pawn Return Variation Trapped Piece in Chess

In the Benko Gambit Accepted, the “pawn return” line can create a trapped piece when the returning pawn (often on a6 or b5 depending on move order) blocks escape squares. The defining feature is that the side that gave the pawn regains material, but their own piece becomes short of squares because the pawn structure hardens around it. This motif is especially common when a minor piece or rook is forced to sit behind its own pawns after the return.