Learn How to Exploit a Discovered Attack: Tactical Refutation
This middlegame puzzle comes from the Sicilian Defense and shows how a discovered attack can turn a strong-looking position into a tactical refutation. White’s pieces are active, but the key idea is that one line opens a direct attack on an important target while also creating a forcing sequence. The position rewards calculation, because the best continuation wins material and exposes the opponent’s queen and pieces to immediate problems.