On Sat, Aug 18, 2012 at 10:36 AM, David Powell <djpow...@djpowell.net> wrote:
>
> I just had a go of solving the Numbers Game from the UK gameshow Countdown
> [1] in clojure.core.logic.
>
> https://gist.github.com/3374505
>
> It works, but it is a bit slow.
>
> Anybody got any ideas on better approaches?
>
> [1] http://en.wikipedia.org/wiki/Countdown_(game_show)#Numbers_round
>
> --
> Dave

I don't have time to offer a better solution but your approach seems
pretty brute force. You need to encode some knowledge into the game.
First I would eliminate actually searching over * and /. This because
it seems to me that it would be useful to know ahead of time what
other numbers can be produced from the cards - for example values
between the large card and 10. I would also continue to use the larger
card (and numbers derived from it) until we are close to the solution.

Hope this helps,
David

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