I want to divide the surface of a donut into as many different regions as possible. The regions can be any shape, as long as they are each in one piece. Each region must touch each of the other regions (touching on a corner doesn't count). How many regions can I make?

(In reply to re: An idea -- solution? (don't know if maximum is achieved) by Tristan)

7 should be possible if you use 2 x a triple helix and (part of) a ring inbetween them (At the other side).

But that will have to wait untill tomorrow. 

 

Posted by Hugo on 2005-04-23 21:40:04