Learn How to Win Material: Discovered Attack
This middlegame puzzle is a classic example of a discovered attack that wins material by exploiting a pinned and overloaded position. One piece is sitting on a vulnerable square, while another defender is tied to a more important task. When the active piece is removed, a hidden line opens and the queen becomes a powerful attacker against the white king-side structure. The result is a tactical refutation that shifts the evaluation sharply in Black’s favor.