Middlegame Puzzle (Rated 1463): Pin — Win Material

A relative pin can look temporary yet decide the entire position. Here, White’s queen attacks a bishop that appears tied to a more valuable queen behind it, creating strong pressure and a tempting material grab. Black’s defensive resource changes the geometry: the pinned piece can move because doing so exposes an attack on White’s queen. The result is a tactical refutation that turns White’s active pieces and extra pawn into a liability, giving Black a decisive advantage.