Kings Indian Attack With E6 Puzzle (Rated 1479): Trap a Piece — Pin
A trapped-piece tactic often begins with an apparent material deficit or an active enemy queen creating multiple threats. Here, Black’s queen attacks the knight and also pressures a pawn, while the knight appears pinned to the queen behind it. The key idea is a tactical refutation: moving the supposedly pinned piece uncovers an attack on the enemy queen. This turns Black’s aggressive queen placement into a liability and gives White a decisive advantage in the middlegame.