Learn How to Win with a Fork: Decisive Material Gain
This puzzle comes from the Queen's Gambit Declined, Marshall Defense, and shows a classic middlegame tactical refutation. White’s pieces are active, but Black can exploit the exposed king and overloaded defenders with a forcing check that creates a fork-like tactical sequence. The key idea is to use tempo against the king while also attacking a valuable piece, turning a defensive position into a winning material gain. In classical chess, these short combinations often decide the game immediately.