Kings Indian Attack Wahls Defense Puzzle (Rated 960): Fork — Decisive Material Gain
This middlegame puzzle is a classic example of a forcing tactical sequence built around king safety and piece coordination. White’s active rook and queen pressure the black king while also targeting loose pieces, creating a decisive material gain. The key idea is that a single forcing check can overload the defender and expose a fork on the king and queen. In classical chess, these patterns often decide the game immediately because the opponent cannot respond to every threat at once.