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Subject: Re: Endgame tablebases - how much do they really affect playing strength

Author: Mark Rawlings

Date: 17:23:54 10/03/03

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On October 03, 2003 at 13:40:59, Les Fernandez wrote:

>On October 03, 2003 at 09:45:36, Mark Rawlings wrote:
>
>>On October 02, 2003 at 04:09:22, Robert Allgeuer wrote:
>>
>>>Hi,
>>>I have run two self-play tests on this subject in the past, please refer to
>>>these links:
>>>
>>>http://www.chess-archive.com/ccc.php?art_id=281455
>>>http://www.chess-archive.com/ccc.php?art_id=307405
>>>
>>>The bottom-line of these tests (and at least another one that I am aware of) is
>>>that 5 men EGTBs do not give you a statistically measurable increase in playing
>>>strength compared to having no EGTBs.
>>
>>Is this because it slows down the search?  The "no increase in strenght" has
>>been reported before, but it's still hard for me to believe...
>>
>>Mark
>>
>>
>>>But for endgame analysis I would still clearly prefer having them than not.
>>>
>>>Robert
>
>
>My thoughts are it may not be a measurable difference "yet" I suspect that if we
>were talking 9 or 10 piece egtb's then we would show the advantage.  Not that 9
>or 10 is the transisiton point but that as we have more pieces in a tb then the
>more measurable will be the advantage.
>
>Les


It will be interesting to see what happens when we have the full set of 6-man
tablebases.  Now that 6-man tablebases with pawns are being computed, maybe
we'll find out in 2004...

Mark



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