Five interlaced pentagons
An ornamental design of five alternately interlaced pentagons (a kind of five-fold counterpart to the three-fold Valknut). No two pentagons are directly interlinked, and any three adjacent pentagons (for example, red, blue and turquoise) are in a Borromean rings configuration, which means that two non-adjacent pentagons will have to be removed in order to free the remaining three.
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%EOFSource: Wikipedia