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Subject: Re: Starting position to 30 ply

Author: Graham Laight

Date: 10:33:08 06/04/01

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On June 04, 2001 at 07:01:21, Rudolf Huber wrote:

>On June 04, 2001 at 06:44:26, Dan Andersson wrote:
>
>>Impressive branching factor. Do you use ETC to reduce the tree/graph? And do you
>>try to search smaller subtrees by finding irregular branching factors? I think
>>it would be interesting to see its search performance without Q-search.
>>
>>Regards Dan Andersson
>
>Just normal (i.e. recursive nullmove) pruning, no ETC, nothing else.
>A search without Q-search? Why would that be interesting?
>
>
>My post should say two things:
>
>1. mtd(f) is very efficient when the score does not change from one iteration
>to the other
>
>2. You can not win material within the first 30 ply
>
>
>Rudolf

More evidence to support the case that chess is ultimately a draw.

Clearly this is not compelling evidence - but the weight of evidence which
exists now must surely be regarded as being close to "beyond reasonable doubt".

I am personally convinced now that chess is, with best play, a draw.

-g



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