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Subject: Re: Juicy scandal

Author: Dave Gomboc

Date: 10:33:20 12/17/98

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On December 17, 1998 at 09:39:17, Jürgen Hartmann wrote:

[snip]
>Moreover I think one of the Chessbase programmers once wrote in a German chess
>magazine why they do the game analysis always backwards which looks weird at
>first sight: He said its done to let engines which don't clear hash tables take
>advantage of 'knowing' the full game continuation which should be a powerful
>enhancement of the analysis results.
>
>Jürgen Hartmann

Yes, this is a well-known technique.  Some successor positions have already been
well-explored, so their assessment is done quickly by reading the hash table.
This speeds computation of the assessment of the current position, and because
the successor position has been analyzed to a certain depth, in early plies the
predecessor position gets a more accurate value backed up to it than if it had
searched the successor node itself.

Someone is bound to say this better than I did. :-)

Dave Gomboc



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