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BP394 For each colored square only, there exists a path starting on it that covers each square of the figure exactly once vs. there is no path that starts on a colored square and covers each square of the figure exactly once.
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CROSSREFS

Adjacent-numbered pages:
BP389 BP390 BP391 BP392 BP393  *  BP395 BP396 BP397 BP398 BP399

KEYWORD

hard, nice, solved, traditional, dithering, left-listable, right-listable

CONCEPT existence (info | search),
path (info | search),
imagined_line_or_curve (info | search),
imagined_entity (info | search)

AUTHOR

Jago Collins

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