# Follow the path of relation through the grid #7

There is a relation between rectilinear-adjacent squares such that there is a unique rectilinear path from the top-left corner of the grid down to the bottom-right corner of the grid. Each square can participate in the path no more than once. What is the relation and the path it induces?

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Hint 1

Closely-related to Follow the path of relation through the grid #8 .

• Can you give a hint? – Culver Kwan May 14 '20 at 4:37
• @CulverKwan Yeah, I'll add one soon – Galen May 14 '20 at 14:40