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A comment on Decades-Old Graph Problem Yields to Amateur Mathematician. Parent comment

Re:Decades-Old Graph Problem Yields to Amateur Mathematician by bronson on Tuesday April 17, 2018 @06:15PM (#16862779)
You didn't even try it, did you? Took 10 seconds.

https://imgur.com/a/1sdJ6

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Re:Decades-Old Graph Problem Yields to Amateur Mathematician by profosaur on Wednesday April 18, 2018 @06:13AM (#16866098)
I love that OP was at least willing to provide an example of a planar map that he believed could not be 4-colored. Credit for sticking his neck out.
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Re:Decades-Old Graph Problem Yields to Amateur Mathematician by yoda222 on Friday April 20, 2018 @04:49AM (#16883209)
Red, blue, yellow, green. And white. That's five colors! ;-)
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