Learn How to Win a Fork: Decisive Material Gain
This middlegame puzzle comes from the Queen's Gambit Declined, Marshall Defense and shows how a forcing check can expose loose pieces and create a decisive material gain. White’s active queen and better piece coordination punish Black’s king safety and the overloaded position around the queenside. The key idea is not a long attack, but a tactical refutation: use forcing moves to win a major piece while keeping the initiative. In classical chess, these short combinations often decide the game immediately.