Rapport Jobava System Hanging Piece Puzzle (Rated 875): Spot Mate in 1 — Queen Sacrifice

This puzzle is a classic example of a forcing tactical finish in the middlegame. White’s queen is ideally placed to exploit loose coordination around the black king, while Black’s heavy pieces and knight are poorly defended. The key idea is to look for a direct checkmate when the enemy king’s escape squares are restricted and a major piece on the back rank is vulnerable. These positions reward fast calculation over slow maneuvering.