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BP1252 No entirely white paths from one side to another vs. one can find such a path.
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COMMENTS

The left-sorted patterns connect all four corners with a single black region. - Rhodri Prysor, Oct 16 2024

CROSSREFS

Adjacent-numbered pages:
BP1247 BP1248 BP1249 BP1250 BP1251  *  BP1253 BP1254 BP1255 BP1256 BP1257

KEYWORD

precise, allsorted, notso, blackwhite, right-null, bordercontent

AUTHOR

Leo Crabbe

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