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A solution to the Four-Color Theorem applied to the map Florida, USA

After struggling with this problem for a while (see initial efforts at: http://community.wolfram.com/groups/-/m/t/1078687 and http://community.wolfram.com/groups/-/m/t/1097057); I want to share a solution to this problem via the attached Mathematica workbook: "A solution to the Four-Color Theorem applied to the map Florida, USA.nb". The problem was not with the code itself but, with the way how the bordering counties for Okeechobee and Palm Beach are presently defined. If you remove Okeechobee from the list of bordering counties of Palm Beach (and vice versa) the code works.

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POSTED BY: Gilmar Rodriguez-Pierluissi
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You are welcome!

POSTED BY: Gilmar Rodriguez-Pierluissi
Updating Name
Updating Name
Posted 4 years ago

Thanks so much Gilmar, that's great and I've downloaded the .nb with no trouble.
POSTED BY: Updating Name
Attachments:
A solution to th...nb
A solution to th...pdf
POSTED BY: Gilmar Rodriguez-Pierluissi

Am I alone in not seeing any attached notebook (tried 2 browsers so far...) so I don't find any details at all of the solution! Thanks.
POSTED BY: Matthew Fairtlough
Rohit Namjoshi
Rohit Namjoshi
Posted 4 years ago

Hi Matthew,

You are not alone. Attachments to old posts are missing. The moderators are aware and said they were working on restoring them. That was several months ago and it seems the problem persists.

Moderators, can you please give us an update on the status of resolving this issue?
POSTED BY: Rohit Namjoshi

Thanks for the update Rohit, as is obvious, I was not aware there was any issue here. A bit surprising really, if this is truly a valued resource for the community! Good luck with getting it resolved. In the meantime, would it be possible to repost the solution here? All best, Matthew.
POSTED BY: Matthew Fairtlough
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