Learn How to Win Material: Fork Tactic
This middlegame puzzle from the Modern Defense shows a classic tactical refutation based on king safety and loose pieces. White has extra material, but the exposed king and an overloaded defensive setup allow Black to seize the initiative with a forcing queen move. The key idea is that a check can also create a fork-like threat against multiple targets, turning a seemingly active bishop into a tactical liability. In classical chess, such moments often decide the game immediately.