Learn How to Win Material: Fork Tactic
This middlegame puzzle comes from the Queen's Gambit Declined and shows how a forcing queen move can create a decisive tactical gain. The key idea is not a direct mating attack, but a combination that wins material by exploiting a pinned piece, loose defenders, and the exposed king. When the opponent’s king is forced to respond, the follow-up can pick off important pieces and leave the position strategically lost.