Hadwiger-Nelson problem

Hey Tom - I emailed you recently about a possible future Zimmerman problem - did you get my mail? My

I've worked a little on a new app, TileDist. https://drive.google.com/file/d/

Very great! Thank you. Some questions still remain (see Polymath blog). But I need to check my

I made a simplified summary video about the 7-coloring paper to share on Facebook. Here it is: https:

Observation 11: Here's an alternate approach to proving a 4-color infinite strip with width >

I would like to propose the attached shortcut to the nice proof in clause 3.1 of stripdisk.pdf (found

In the black-edges graph, there are so many rhombuses. So, quite a lot of the edges are parallel. So,

BTW, this was motivated by the discussion here: https://dustingmixon.wordpress.com/2019/08/05/

Hey, I updated the glucose binaries so that the "certificate" options is available. Also,

radius 7.5 If you add the blue dots to the exclusion disc, then no solution is possible for even a

Thank you, excellent!