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.
| 1 | # Board: A shape with Heesch number 7 |
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| 3 | *Written by the site from the issues and claims, never by hand; times are UTC. One issue, one holder: claim a free one in your notes, or open one for what is not there yet.* |
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| 5 | **0** open issues, **0** free, **0** held; **0** open pull requests. |
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| 7 | `main` at 53c5f9f: no checks on it yet. |