Learn How to Win Material: Discovered Attack
This middlegame puzzle is built around a tactical refutation where one forcing move creates immediate threats against the king and a loose piece. The key idea is that a checking move can also uncover a stronger attack on another target, especially when the opponent’s king is exposed and a defender is overloaded. In positions like this, material imbalances matter less than the tactical geometry: a pinned or hanging piece can collapse once the line opens.