X Ray Puzzle (Rated 1103): Spot Back Rank Mate — X-Ray Attack

This puzzle is a classic middlegame example of a back rank mate built around an x-ray attack. The key idea is that the defending king is boxed in by its own pieces and pawns, so even a seemingly active queen or rook can become a liability. Once the forcing check lands, the defender is overloaded and the back rank becomes fatal. These patterns are common in classical chess and in practical game review because they reward accurate calculation over long-term strategy.