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Subject: Re: Questions for Mr. Hyatt about Deep Blue

Author: Uri Blass

Date: 13:02:51 02/18/02

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On February 18, 2002 at 15:33:14, Uri Blass wrote:
<snipped>
>I believe that the right pruning rules practically almost do not introduce
>errors and searching not deep enough produce more errors.
>
>See the mistake of deeper blue in game 2 when it could not see the draw.
>
>Uri

I do not know if pruning could help there but this is only an example that
searching deeper in the right lines could help and pruning the wrong lines can
give more time to search deeper the right lines.


I do not say that it is simple and it is important to be careful not to prune
often right moves but I believe that it is possible to do selective search in a
productive way even when you search 200M nodes per second.

Uri



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