Queen's Gambit Declined Clearance For Skewer Chess Puzzles

Queen's Gambit Declined Clearance for Skewer is a tactical motif that appears in Queen's Gambit Declined structures when one side clears a key square, file, or diagonal so a skewer can hit a more valuable piece behind a less valuable one. In practice, the defining feature is often a pawn or minor piece moving away from a line that had been shielding the queen, rook, or king. The idea is especially common after central tension opens the c-file, e-file, or a long diagonal.