Image:Borromean-chainmail-tile.png

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[edit] Summary

"Borromean chain-mail" -- an indefinitely extended pattern in which each small circle is part of four Borromean rings configurations, and each large circle is part of eight Borromean rings configurations (so that every area contained within circles of three different colors is at the center of a Borromean rings configuration, and no two circles are directly linked).

To free a yellow or blue loop, two red loops or two green loops must be cut. To free a red or green loop, four other loops must be cut.

For a five-circle configuration which is a subpart of this pattern, see Image:Borromean-cross.png / Image:Borromean-cross.svg .

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