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Subject: Re: Algorithms vs. knowledge - What to do next?

Author: Vincent Diepeveen

Date: 06:00:22 06/04/02

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On June 04, 2002 at 08:50:35, Uri Blass wrote:

>On June 04, 2002 at 07:11:20, Vincent Diepeveen wrote:
>
>>On June 04, 2002 at 02:11:40, Russell Reagan wrote:
>>
>>To speak for diep in i-csvn2, on average i was outsearched
>>by 3 ply by the commercial programs i played there.
>>
>>Even The King (Chessmaster) nowaday searches deeper than it used to do.
>>It got like 12 ply now where it in past times would have gotten
>>9 ply at same hardware.
>>
>>One game it lost and not because it was outsearched but by its own stupidiness.
>>
>>I wasn't feeling bad for getting outsearched. Instead i saw so many times
>>my score go up at for example 11 ply with a certain mainline. Then after
>>making my move opponent needed a huge number of plies more to get a fail
>>low and get to the same move.
>>
>>Nullmove is a great enhancement of nowadays programs, but i get impression
>>most just prune too much. Also all preprocessors i play against get
>>completely annihilated. It is clear that the glory times of preprocessing
>>and getting a few ply more instead, that those days are over.
>>
>>Nevertheless i get impression that most here do not know what is happening
>>last year. Last years we have seen no new ideas which were giving a
>>search speedup like nullmove, hashtables and alfabeta have given.
>>
>>Instead everyone worked at his evaluation bigtime.
>
>I have ideas how to improve the search speed but I decided in the near future to
>think about the evaluation.
>
>It does not mean writing a lot of source code but thinking how to do the biggest
>improvement in evaluation by relatively small changes.
>
>Uri

Till 1999 everyone definitely tried the above.

Even Tiger knows nowadays what are good bishops though.

Perhaps should ring a bell for you.





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