Homage to the self-avoiding walk on a 6x6 grid. In each of the 144 cells,
the boundary between the white and non-white areas is the walk. Taken together,
the walks form an early stage in the progression toward a space-filling curve.
Six types of walks were used and carefully aligned according to the pattern of
a seventh type. The background colors in each quadrant reveal this last walk and
serve as a guide to help you follow the larger curve. Although it may appear so,
nothing in this image was placed randomly.
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