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Posted: Sun Mar 25, 2018 9:07 pm
by IB_
I looked, some of them are horrible. This calls for a Map Pack 4 in 2 weeks™.

Posted: Sun Mar 25, 2018 10:34 pm
by TheDevil
Holy @#(!! I don't even remember any of the posts I made in this thread!

Was I even playing alleg?

Do I even exists? what....

Posted: Sun Mar 25, 2018 10:54 pm
by cashto
IB_ wrote:QUOTE (IB_ @ Apr 25 2010, 12:42 AM) I know, but people really hate the crossing alephs with a passion.
Planar graphs are so boring.

May I submit to you the Petersen graph?

Minimal crossing number is 2, but I'm partial to this representation with 3 crossings. Some other representations here.

Diameter of this graph is 2, so it needs a low-sign middle sector (purple middle sector in the previous link).