Trace The Triangle
Trace the edge of the Serpinski Figure below with one continuous line, without going over any line twice.
You can trace the edge of any stage of the Serpinski Sieve without going over any line twice. But I have found it's not so easy to always make the right choice at every node so that you don't paint yourself in. pic.twitter.com/6QkqOUBupx
— David Butler (@DavidKButlerUoA) December 7, 2020