Colle System Hanging Piece in Chess

In the Colle System Hanging Piece motif, a piece or pawn that supports the Colle structure becomes tactically loose—often after a forcing move that shifts defenders. A defining feature is the typical Colle setup (e.g., pawns on d4 and e3 with the bishop on f4 or d3) where the c4/d4/e3 complex can be overworked. When that support breaks, the “hanging” target can be won with tempo.