King's Indian Attack Puzzle (Rated 1100): Pin — Win Material

An overloaded defender is a piece forced to protect more than one critical target. When those duties cannot be fulfilled at the same time, a tactical breakthrough becomes possible. In this middlegame, Black’s queen is tied to multiple defensive responsibilities while the king remains exposed in the center. White can exploit this tension by coordinating the queen and bishop, using a discovered attack to remove a valuable defender and win material decisively.