Learn How to Win Material: Fork Tactics
This middlegame puzzle comes from the Queen's Gambit Declined and shows how a single tactical shot can flip the evaluation through decisive material gain. The key idea is to notice when the opponent’s king is exposed and a piece can be forced into a vulnerable square. In positions like this, a forcing move can create a fork, expose a pinned piece, and win time with check. The result is not a mating attack, but a strong tactical refutation that leaves one side clearly better.