Learn How to Win Material: Discovered Attack
This middlegame puzzle is a classic example of a tactical refutation built around king safety and piece activity. One side has active pieces aimed at the enemy king, while the defender is overloaded and vulnerable to a forcing sequence. The key idea is that a direct check can pull the king into a worse square, allowing a hidden attacker to strike with tempo. In practical classical chess, these patterns often decide games by winning major material rather than by a mating attack.