Fork Puzzle (Rated 867): Win with a Fork — Chess Endgame Tactic

This puzzle shows how a tactical shot can decide a seemingly calm chess endgame or middlegame. White appears to be ahead materially, but Black’s active pieces create a forcing sequence that turns the king’s safety into a liability. The key idea is a fork: one piece gives check while also creating a second threat, forcing the king into a narrow set of replies. In practical classical chess, these moments often outweigh raw material.