French Defense Kings Indian Attack Trapped Piece in Chess

In the French Defense, Kings Indian Attack, a “trapped piece” is a tactical motif where a piece (often a knight or bishop) becomes boxed in by its own pawns and the opponent’s pawn structure. A defining feature is the typical French setup with ...c5 and ...d5 pressure, while White’s kingside attack and central tension can leave a defender short of escape squares. When the opponent’s pieces coordinate, the trapped unit can’t retreat without losing material or getting mated.