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Subject: Re: FAQ about obtaining tablebases.

Author: Robert Hyatt

Date: 06:29:33 04/05/01

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On April 05, 2001 at 03:51:42, Jason Williamson wrote:

>On April 04, 2001 at 18:18:44, Robert Hyatt wrote:
>
>>On April 04, 2001 at 15:53:07, Victor Zakharov wrote:
>>
>>>On April 04, 2001 at 15:36:41, Helmut Conrady wrote:
>>>
>>>>On April 04, 2001 at 12:40:31, Victor Zakharov wrote:
>>>>
>>>>>On April 04, 2001 at 11:39:11, Rob Shultz wrote:
>>>>>
>>>>>>This is prob a FAQ but I would like to get the tablebases for the programs I own
>>>>>>(Fritz 5.32, Nimzo 99a, Junior 5 and the Rebel 11 package).  I was hoping to be
>>>>>>able to get all the 3,4 and 5 piece tables at least.  I see that you can buy the
>>>>>>Fritz CD's that contain the 3,4 and some 5 piece tables.  I'm guessing that
>>>>>>ChessTiger would be able to use those tables too.  Is this the biggest set that
>>>>>>you can buy?  I only have a 56K modem so downloading the tables is not an
>>>>>>option!  :-)
>>>>>>
>>>>>>Thanks for your time,
>>>>>>Rob
>>>>>
>>>>>I suspect that the biggest set is here.
>>>>>
>>>>>http://www.chessassistant.com/news/i16032001.htm
>>>>>
>>>>>Victor
>>>>
>>>>9 CDS can not cover all 5 man including the 4+1 man. For this you need 12 CDS.
>>>>Email-adress for getting them: Steinwender@t-online.de (169 DM).
>>>>
>>>>Helmut
>>>
>>>Yes, endings with 4 pieces against King where there is at least one Rook or
>>>Queen are not in 9 CD set.
>>>http://www.chessassistant.com/news/i16032001.htm
>>>Any engine is able to find quick mate in less than a second here.
>>>
>>>Victor
>>
>>
>>Unless the engine sees that the starting position is a mate in N from the
>>tablebases, but after a promotion, it doesn't reach a tablebase position and
>>refuses to promote.
>>
>>Known problem with _many_ programs.
>
>Wouldn't that be only a serious issue if 6 piece table bases are used?


Nope.  you can start in a won KQPKQ ending, and if you don't have KQQKQ you
might not be able to win it.  Or you can start in a position like knnpk and
if you don't promote the p, you can't mate.  If you don't have knn*something*
then you are in trouble.



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