Grunfeld Defense Lundin Variation Puzzle (Rated 1516): Win with a Fork — Decisive Material Gain
This middlegame puzzle is a classic example of a tactical refutation built around king safety and piece coordination. White’s knight is ideally placed to exploit loose defenders, while Black’s advanced knight creates pressure but also leaves tactical weaknesses behind. The key idea is to use forcing moves that combine check and material gain, turning an active-looking attack into a decisive advantage. In classical chess, these positions often reward the side that spots the hidden fork before the opponent can consolidate.