Queen Rook Endgame Puzzle (Rated 936): Spot Mate in 1 — Queen Rook Endgame

This puzzle is a classic chess endgame-style mating attack where material is secondary to king safety. Even though Black is ahead in material, the exposed king and loose pawn cover create a decisive tactical shot. In positions like this, rook activity and open lines matter more than counting pieces. The key lesson is that a seemingly strong material advantage can collapse instantly when the king’s shelter is weakened and a back-rank or h-file weakness appears.