Queen's Gambit Declined Three Knights Variation Puzzle (Rated 966): Win Material — Fork Tactic

This middlegame puzzle shows how a single forcing idea can convert activity into a decisive material gain. White’s pieces are aimed at the enemy king and the back rank, while Black’s heavy piece coordination is loose enough to be punished. The key pattern is a tactical strike that uses check to drag the king into a worse square, then wins a major piece by exploiting a pin and an overloaded defender. In classical chess, these motifs often appear together when king safety is the dominant imbalance.