You are probably still running around in you fancy pants after yesterday, so lets try something a little less frenetic and more cerebral. Ideal for waking up on a Sunday morning before contemplating fighting your way through traffic to get your holiday gifts.

So what on earth is this?
Click through to find out.

Its a simple puzzle game of rearranging vertices until the net has not crossing edges. Simple yes? Actually it is quite easy, once you have inadvertently invented a large range of topological proofs in your brain. Which people tend to do. No bells and whistles, just the genuine satisfaction of solving a tricky puzzle.