加入
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.
比较改动
选两个分支看看改了什么，再发起 PR 把工作带过去。
选两个不同的分支
PR 可以从任何一个分支合入任何另一个分支。
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.
选两个分支看看改了什么，再发起 PR 把工作带过去。
PR 可以从任何一个分支合入任何另一个分支。