Learn How to Exploit a Fork: Queen's Gambit Declined
This Queen's Gambit Declined puzzle shows how a single active knight can transform a cramped position into a tactical refutation. The key idea is piece activity: when the opponent’s queen and bishop are exposed, a well-timed knight jump can create a fork that wins time and material. In classical chess, especially in the opening and middlegame, forcing moves often matter more than static material count because they can trap major pieces and disrupt development.