Stonewall Attack Puzzle (Rated 839): Skewer — Win Material

This middlegame puzzle demonstrates how a skewer can turn pressure on a valuable piece into a decisive material gain. White’s queen attacks a bishop while also creating a line for the rook behind it. The bishop cannot be saved cleanly because Black’s queen is overloaded: it must defend more than one vulnerable target. Recognizing this coordination lets you calculate a forcing sequence that simplifies the position and leaves White with a substantial advantage.