Learn How to Win Material: Discovered Attack
This puzzle comes from the Queen’s Pawn Game and London System, where White spots a tactical refutation based on a discovered attack. The key idea is that a moved piece can open a line for a bishop, creating pressure on an undefended target while also exploiting a pinned or overworked defender. In practical play, these motifs often lead to decisive material gain rather than a direct mating attack, especially in the opening when pieces are still coordinating.