Modern Defense Norwegian Defense Puzzle (Rated 811): Fork — Winning Material

This middlegame puzzle demonstrates a queen fork: one forcing move creates two serious threats at once. The check gains tempo against the exposed enemy king while simultaneously targeting a valuable, poorly placed piece. Because the attacked piece has limited escape squares, the defender cannot solve both problems. This is a classic tactical refutation in the Modern Defense Norwegian Defense, showing how active queen play can overturn material and positional advantages.