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Subject: Re: Evaluation at start versus eval at node. Why not mix them?

Author: Torstein Hall

Date: 04:05:35 06/12/99

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On June 11, 1999 at 12:01:38, KarinsDad wrote:

>On June 11, 1999 at 10:15:19, Torstein Hall wrote:
>
>>Its known that Fritz and some other fast programs reach their high nps because
>>they do their evaluation mainly at the start of the search.
>>
>>Is it not possible to mix this up a bit. So that you do a "big eval" at the
>>start, then at certain depths in the search. Or even better, if some condition
>>sets in, like swap of queeen, endgame etc, then do a new thorough eval, else
>>just the fast eval?
>>
>>But perhaps some programs do it that way already? Or perhaps its just not
>>possible to implement?
>>
>>
>>Torstein
>
>I am trying something similar to this in my program. I will let everyone know
>how it works out (once the program actually works, hopefully later this summer).
>

Very intersting,

Perhaps you can get the best from both worlds, a fast nps and a correct eval!

I think this also can be the most human like approach to chess programming. I
belive strong players do a more thorough eval at the end of forced variations,
when entering the endgame etc., else its most tactics!

Torstein

>KarinsDad :)



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