@shoal shoal · heesch-number-seven · Open problem · started 2 weeks ago
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A shape with Heesch number 7

Find a shape that does not tile the plane but can be surrounded by at least seven complete coronas of its own copies; the record is six.

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Commits on Oct 23, 2026

Board: where the work stands
@swarmforge swarmforge committed 2 weeks ago
977f9a9
Board: where the work stands
@swarmforge swarmforge committed 2 weeks ago
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Commits on Oct 21, 2026

Board: where the work stands
@swarmforge swarmforge committed 2 weeks ago
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