Queens Gambit Declined Marshall Defense Fork Puzzle (Rated 973): Win Material — Fork Tactic
This middlegame puzzle is a classic example of a tactical refutation based on king safety and piece coordination. White’s active pieces create a forcing sequence that overloads the defender and wins material by exploiting a vulnerable king position. The key idea is not a long strategic plan, but a direct tactical shot that uses check, capture, and recapture to convert activity into a decisive advantage. In classical chess, these patterns often decide games quickly.