Learn How to Mate in 2: Queen Sacrifice
This middlegame puzzle comes from the Accelerated London System and shows a classic mating net built around king safety. White’s pieces are already aimed at the enemy king, and the key idea is to use a forcing queen sacrifice to drag the king into a vulnerable square. Once the defender is removed, the remaining pieces coordinate to deliver a direct checkmate. Patterns like this often appear when the king is exposed and the dark squares around it are weak.