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Subject: Re: New ideas for Ed...

Author: Ed Schröder

Date: 09:34:58 09/26/03

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On September 26, 2003 at 10:39:26, Eelco de Groot wrote:

>On September 26, 2003 at 05:01:22, Thorsten Czub wrote:
>
>>the main problem is that is have to use
>>a style based on 9375 for the slow programs (hiarcs, shredder)
>>and on the base of 9344 for the fast programs.
>>
>>so far i was not able to create a style that works for both opponent
>>programs :-((

>It's a pity Thorsten. But the result against Shredder still stands!
>
>I agree with Ed that [Pruning ? MISC_37] * New extension might not be so bad. I
>remember that taking it out for some testpositions made results -for those
>positions- worse. At least I believe in this extension more than in [Pruning =
>MISC_40] * New reduction , which I suspect of making it harder to find the Bg7
>defence that Thomas Lagershausen mentioned in
>http://f50.parsimony.net/forum200336/messages/515.htm


Hi Eelco,

>At least that was the case for my settings. Possible improvements would probably
>be a lot of work for Ed... For instance, if the history depth does best at 9,
>would it do even better if you could set it at 10? And if so might it not be
>possible that taking the history depth idea back and not remembering it in the
>hashtable could be an idea?

Keep in mind that the history depth goes not further than 9.



>Also if some extensions work best at blitz or best at the earlier plydepths, how
>about for a new Rebel some extensions like [Pruning ? MISC_37] that could be
>switched off after a certain plydepth?

I have been experimenting with this, it certainly makes sense with nowadays fast
machines.


>Maybe that would work for some reductions
>too, like the Fail High Reductions but then to start them only at plydepth 12
>for instance. But that is I think for the future...
>
>Sorry Ed, maybe that would be an awful lot of work..
>
>
>
>I would like it to be noted in the records that today I managed to beat Macheïde
>Lite 0 just once, with very experimental settings!

Well, congrats anyway :)

Ed



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