Learn How to Win Material: Discovered Attack
This classical chess middlegame puzzle comes from the Queen's Gambit Declined and revolves around a discovered attack with a forcing tactical refutation. The key idea is that one piece can be moved with tempo to expose a stronger attack on a more valuable target, while also creating a check that limits the opponent’s replies. In positions like this, the side to move often wins material by combining check, pin, and skewering motifs into one short sequence.