Once more, Esther the procrastination fairy has visited.
I found
this game on
abigailb's LJ. Blame her.
The idea is you have a number of dots with lines between them (for those CS/maths students, it's a graph, for dots read as nodes, and lines read edges). The idea is to arrange the dots such that none of the lines cross.
I'm on level 9 so far.