Useful x-ray

A useful x-ray is an x-ray that is worth acting on: the piece beyond is under-defended, a discovery is possible, or the line forces a concession. Many optical x-rays are noise.

The signal

After you can see every x-ray, ask which ones change the evaluation if the front piece moves or is captured. Mark only those. The habit is *priority*, not listing every battery on the board.

Why it is easy to miss in a game

Players either ignore all x-rays or freeze on harmless ones. Useful x-ray is the filter: the same scan as x-ray, then a second question — “does this actually hurt?” That is closer to how a strong player spends the first seconds.

What WayChess trains

You mark useful x-rays for you and for the opponent, with feedback when you include a line that does not threaten anything real. Build it on top of the basic x-ray habit.

See all habits.