Learn How to Win Material: Discovered Check
This Ruy Lopez middlegame puzzle centers on a forcing tactical refutation where a knight jump creates a discovered check and exposes the enemy king. The key idea is that one active piece can do two jobs at once: give check and uncover a second threat against a loose defender. White’s pieces are coordinated around Black’s king and the position is already tactically overloaded, so the right move wins material with tempo rather than relying on slow positional play.