Queens Pawn Game X Ray Attack Puzzle (Rated 996): X-Ray Attack — Gain

An x-ray attack occurs when a valuable piece or target is exposed through another piece, creating a hidden tactical relationship. In this middlegame puzzle, the heavy pieces on the a-file create an alignment that makes the opponent’s last move a serious inaccuracy. The key idea is to recognize that an apparent attacker may itself be vulnerable. By exploiting the x-ray, you force a sequence that removes a major defender and produces a decisive material gain.