English: Regular four-sided polygon with two entry points per side and four paths linking all eight entry points. Nomenclature is (4S4P) = 4 sides, 4 paths and (ab-cd-ef-gh) = linked points, starting from the left point on the bottom edge and proceeding anti-clockwise: a&b are linked, likewise c&d, e&f, g&h. The inscribed square demonstrates the pairing relationship between 12-36-48-57 and 16-28-37-45.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.