Pseudo Queen's Indian Defense Hanging Piece in Chess

In the Pseudo Queen's Indian Defense, a “hanging piece” motif arises when Black’s setup (often with ...b6 and ...Bb7) leaves a key unit temporarily unprotected. The defining feature is that a pawn-structure or piece alignment makes a central or queenside piece (commonly a knight or pawn) vulnerable to immediate capture because the usual defender is pinned, overloaded, or out of position.