Fork Advanced Puzzle (Rated 600): Fork — Tactical Gain
A fork becomes powerful when one move attacks two valuable targets at once, especially a king and a rook. In this chess endgame, Black’s bishop exploits a pinned pawn and creates a forcing double attack. The position also contains a skewer: the rook appears to threaten the king’s knight, but the knight’s defensive duty can be overturned by a more urgent tactical threat. The key idea is to calculate forcing checks before accepting material or positional weaknesses.