Queen's Indian Defense Hanging Piece in Chess

In the Queen’s Indian Defense, a “hanging piece” is a tactical motif where a pawn or piece is left temporarily undefended (often on d5, c4, or e4 squares) after typical development moves. The defining feature is that the position’s pawn structure and piece placement create a moment where the opponent can attack the target without immediate recapture. For example, after Black’s …Bb7 and …d5 ideas, White may have a piece/pawn that looks stable but is actually pinned, overloaded, or simply unprotected.