Learn How to Win Material: Discovered Attack
This middlegame puzzle is built around a classic tactical idea: a pinned piece becomes the target of a forcing capture, and the recapture opens a line for a stronger piece. The key is that the defender is overloaded, so removing it creates a discovered attack on a more valuable target. In positions like this, the tactical reward is often a decisive material gain rather than a direct king attack, especially when rooks are lined up on open files and the queen is exposed.