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Subject: Re: DB just another program

Author: Tom Kerrigan

Date: 16:30:53 01/27/00

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On January 27, 2000 at 18:12:46, Timothy J. Frohlick wrote:

>On January 27, 2000 at 17:27:04, Dann Corbit wrote:
>
>>On January 27, 2000 at 17:13:34, Timothy J. Frohlick wrote:
>>[snip]
>>>Right on Tim,
>>>
>>>This is especially true when the 1 and 2 ply searches may be full-width and the
>>>30 and 31 ply searches are always selective searches.  We know that DB was
>>>thousands of times faster than any chess computers in the average home and it
>>>only managed to hold its' own against Kasparov.  If the rating goes up linearly
>>>then DB should have had a rating of elo 3000+++
>
>
>Chess computers in the average home are 1/4 the speed of computers that Dann
>Corbit uses.  Also, don't forget that the databases used in DB were orders of
>magnitude bigger than what us poor mortals use.

I have a 400MHz Celeron and my program searches about 200k NPS. It's not
particularly fast or slow. I think his estimates are absolutely dead-on.

Regarding the databases that were used... The opening book is a brillant example
of "more is not always better."

-Tom



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