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Subject: Re: Castling is not possible

Author: Bernhard Bauer

Date: 06:19:12 03/06/02

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On March 06, 2002 at 08:58:40, David Dory wrote:

>On March 06, 2002 at 05:29:30, Bernhard Bauer wrote:
>
>>On March 06, 2002 at 05:17:55, Gian-Carlo Pascutto wrote:
>>
>>>On March 06, 2002 at 05:14:57, Bernhard Bauer wrote:
>>>
>>>>Do you really think the Washington Post gave the position in EPD?
>>>
>>>I don't know what the Washington Post gave, but the position
>>>as posted here was not correct.
>>>
>>>If they only have the diagram, it was ambiguous.
>>>
>>>--
>>>GCP
>>
>>You don't know what the Washington Post gave?  :-)))
>>The poster who started this thread did't convert the position to correct epd as
>>he was not aware of castling.
>>If they only give the diagram you have to assume every posibility. So a diagram
>>is *not* ambiguous.
>>In any case, table bases will not help, whether the epd string is right or
>>wrong.
>>Admit it, even it may be dificult, you were plain wrong.
>>Kind regards
>>Bernhard
>
>I understand what you mean about the diagram, and taking no assumptions, even
>though the posted FEN did state EXPLICITLY that no castling rights existed.
>We should all have taken a step back and looked at that possibility as you
>suggest.
>
>I don't have a single clue what you mean when you say "table bases will not
>help, whether the epd string is right or wrong".*
>
>Not only will the table bases HELP, but they will help the program play the
>position AS GOOD AS GOD, (rumor has it that's pretty good, even for playing
>chess with atheists or agnostics)! :-)
>
>When it comes to "difficult admitting", I'd hold up a mirror and not look to
>Terry, et. al..
>
>Dave
>
>
>
>
>
>
>*(actually, it's an FEN string, but no matter).

Dear chess friend,
When I said "table bases will not help, whether the epd string is right or
wrong".*
I meant it only for the given position. Since current table bases (Nalimov table
bases) do not know about castling rights they may not give the shortest move
sequence to mate. This holds wether you have an EPD or FEN string. So it dosn't
matter.
If castling is involved a program using table bases may play considarably worse
than GOD.
I think that is common knowlege. If you don't believe me, ask Eugene or any
programmer.
Kind regards
Bernhard



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