Learn How to Win Material: Exchange Variation
This puzzle comes from the Queen's Gambit Declined Exchange Variation, where development and king safety matter more than grabbing loose pawns. White has active pieces, a strong knight outpost, and pressure against the black king, but Black can answer with a forcing tactical sequence that changes the evaluation. The key idea is that a checking move can disrupt coordination, force a defensive reply, and then win material by exploiting a pinned or overloaded piece. In classical chess, these tactical refutations often decide the opening.