Learn How to Exploit a Pin: Winning Material
This middlegame puzzle is built around a strong pin on the queen, which creates a tactical weakness in White’s position. The key idea is that a seemingly active queen and bishop setup can be undermined when one piece is tied to the king or to a more valuable target. Once the pin is established, the defender’s coordination collapses and Black can simplify into a favorable material gain. It’s a classic example of using piece activity and pressure on the center to convert a positional edge into concrete profit.