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Subject: Re: Fruit 2 and endgame play

Author: Mridul Muralidharan

Date: 23:47:21 01/13/05

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On January 13, 2005 at 18:16:49, Dieter Buerssner wrote:

>On January 13, 2005 at 16:36:47, Dann Corbit wrote:
>
>>>You can easily perform your own experiments with patzer and yace.  You will see
>>>benefit at every time control.
>>
>>I should mention that my bitbase experiments also had tablebase files activated.
>> I do not know if this is important or not, and probably experiments should be
>>also run with bitbase files only.
>
>While Yace bitbase code is designed with the idea to work (in most cases)
>without TBs, much of this is not implemented (and perhaps never will be). For
>example, say KRKN. A forced line to won KRKN position is found by search (with
>the help of bitbases). Now the pos is on the board. If it is difficult to win
>(which really might be the case in KRKN), Yace won't win in without TBs. Probing
>TBs only at the root will be enough, however (it is possible to set this in Yace
>- most conveniently when run as UCI engine). In typical computer match setups,
>such a problem could easily be hidden.


<snip>
Assume the opponent is an engine with
>TBs. It will probably resign ...
>
>Regards,
>Dieter


This is where yace will have tough time with my progs - they will never resign
in this situation , since a) eval sucks - so wont see the mate coming (no mate
patterns in eval) , b) I will not probe TBs when it is lost endgame :) - what is
the point ! lose faster ?! ;) (currently - no TBs period - so even better
against yuo :D )

Just kidding. Hope you got to your data recovered ! WIll try to catch you in icc
soon

Mridul



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