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Subject: Re: fritz6 and table bases tb=233 what does this mean in the eval window

Author: Mike S.

Date: 10:32:13 02/19/01

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On February 19, 2001 at 13:21:18, Joseph Merolle wrote:

>(...) Does it mean that there are 233 positions
>that a capture can lead to. In other words if it says tb=60 does that mean that
>from this position it could end up in one of the 60 positons in the tb.

Yes... but not necessarily end up, it just means that 60 of the (millons of)
positions in the search tree have been found in the tablebases, which means that
these 60 positions had database material only (i.e. KR-KN or whatever, depending
on which tb's are installed).

>and if
>this is true how come the engine does not kick off and get the eval from the tb
>instead of the engine calulations? Thanks for the help

It gets the eval, but only for these positions somewhere in the tree. It "kicks
off" (if I understand you correctly), when a database material is reached in the
game and is at the board already. Then, no tree search is necessary.

(Is this correct Prof. Bob?)

Regards,
M.Scheidl



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