Queen Fork Puzzle (Rated 943): Win a Chess Endgame Fork — Queen Rook Endgame

This chess endgame puzzle shows how a queen can create a decisive tactical gain by attacking two valuable targets at once. In simplified positions, activity matters as much as raw material, and a single forcing check can expose loose coordination between the king and rook. Here, the key idea is a fork: the queen uses check to gain tempo while also threatening a major piece, turning a seemingly balanced classical chess position into a winning advantage.