Learn How to Win Material: Pin Tactic
This middlegame puzzle comes from the King's Gambit Declined and shows how a pin can turn a tense position into a decisive material win. White’s pieces are active, but the key idea is to improve rook coordination so the black queen becomes vulnerable on the e-file. Once the pressure is increased, the pinned queen cannot move freely without exposing the king or dropping material. It is a classic example of using activity and alignment to punish an exposed king.