Czech Defense X Ray Attack in Chess

The Czech Defense X Ray Attack is a tactical motif in the Czech Defense where a piece attacks through another unit (an x-ray), creating pressure on a more valuable target behind it. A defining feature is the early development and alignment that lets your long-range piece (often a bishop) “see” past a pinned or interposed piece to hit something critical. In practice, the motif often appears after the Czech Defense’s characteristic pawn structure and piece placement allow a pin to turn into a direct threat.