Learn How to Win Material: Discovered Attack
This puzzle comes from the Queen's Gambit Declined and shows a classic discovered attack idea in the opening. White’s active pieces and exposed black king create a tactical refutation that wins material by forcing the position open. The key is to notice how one capture can trigger a chain reaction: a check, a queen trade, and then a follow-up that keeps the pressure on the king and loose pieces. It is a strong example of classical chess calculation and piece coordination.