Queens Gambit Declined Pin Beginner Puzzle (Rated 982): Exploit a Pin — Decisive Material Gain

This middlegame puzzle is built around a powerful pin on the queen that also creates a skewer-like tactical problem for White’s king and major pieces. Black’s active bishop and queen coordinate to pressure the center and punish the exposed king, turning a material deficit into a winning attack. The key idea is that a seemingly natural defensive response can fail because the pinned piece cannot move freely without allowing a decisive gain.