5 December 2009

FT Advent Calendar Of Free Online Games: 5th December

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?
vertices
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.

PLANARITY

planarity

Pete Baran in FT • 284 views • Share/Save

Comments

  1. Kat but logged out innit on 6 December 2009

    Argh, my eyes started going funny after level 11.

  2. swanstep on 7 December 2009

    @Kat, your remark inspired me to work through up to Level 12, and I concur that eyes and motivation both seem to give out at about that point. After about level 9 one ends up spending a heck of lot of time painstakingly reversing twists that tangle a couple of otherwise well-sorted clusters. A way of dragging whole clusters and of reorienting them would help. Fun game once through as far as it goes tho’.

  3. Kat but logged out innit on 25 December 2009

    OK I think level 18 is my limit.

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