Learn How to Use an X-Ray Attack: Endgame Tactics
This chess endgame puzzle is built around an x-ray attack: a line of pressure through one piece to a more valuable target behind it. The key idea is that a seemingly active rook can actually be overloaded when a hidden file or rank becomes available. In simplified positions, these tactics often decide the game immediately because every tempo matters and king safety is reduced. Here, the winning side uses forcing play to exploit a pinned rook and a vulnerable back line.