Learn How to Win Material: Fork Tactics
This middlegame puzzle from the King's Indian Defense shows how a single tactical idea can swing the evaluation sharply. White’s pieces are active, but Black has a hidden resource that targets loose coordination and exposed tactical weaknesses. The key lesson is that material advantages can disappear quickly when a central piece is vulnerable to a forcing capture and the resulting position creates a fork or discovered attack. In classical chess, these tactical refutations often decide the game immediately.