Learn How to Win Material: Pin Tactic
This middlegame puzzle comes from the King's Gambit Accepted and shows how a pin can turn a healthy-looking position into a tactical win. White has active pieces and space, but the key idea is that one important piece becomes overloaded and vulnerable once the pressure is increased on the central queen and the pinned line. In classical chess, these short tactical sequences often decide the game by winning material rather than delivering mate.