Learn How to Win a Fork: Decisive Material Gain
This middlegame puzzle comes from the Queen's Gambit Declined and shows how a forcing tactical shot can turn a stable-looking position into a decisive material gain. The key idea is a fork: one piece move creates a check while also attacking a high-value target, forcing the opponent into a narrow defensive path. In practical classical chess, these motifs often appear when the king is slightly exposed and a piece is overextended.