If you are willing to have some pairs of hexagons border each-other along two edges, you can squint and pretend to cover a sphere by hexagons alone. http://arch

If you are willing to have some pairs of hexagons border each-other along two edges, you can squint and pretend to cover a sphere by hexagons alone. http://archive.bridgesmathart.org/2017/bridges2017-237.pdf http://archive.bridgesmathart.org/2017/bridges2017-237.pdf The way the discrete global grids people handle it (TFA is an implementation of that) is generally to stick 12 pentagonal pixels in their grid at the corners of an icosahedron.