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Subject: Re: Meaningless Underpromotions

Author: blass uri

Date: 15:28:31 08/11/99

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On August 11, 1999 at 09:49:25, Robert Hyatt wrote:

<snipped>
>Actually, when you think about the SSDF rating list, this does make a lot of
>sense to do.
>
>I don't do it.  But I do see oddball underpromotions for the reason I gave
>earlier.  But when you are interested in topping the SSDF list, every little
>thing helps.

I do not believe they do it in order to top the ssdf list because it is not
clear if it is productive.

It should take less time to prove that promotion to queen is the best relative
to promotion to rook if you assume the right reply is taking the promoted pawn
because when you promote to a queen it is more easy to see that the opponent
must take the queen because the alternatives are bad.

I also found that programmers could do other things that they do not do in order
to goto the top of the ssdf.

For example Fritz's engines way of learning is stupid in the ssdf games.
one example:
I found that Junior5 won nimzo3.5 and after repeating the same opening failed to
repeat the same moves again because nimzo3.5 used different time for its moves
and Junior could not use the permanent brain for the same time.

Even without learning the result it is logical to repeat the move you used more
time for it so Junior should repeat the move it played in the first game because
of this reason but Fritz's engines way of learning and logic are 2 things that
do not go together.

I do not believe that prograsmmmers care for little tricks to get better results
in the ssdf list because of this stupid mistake and other stupid mistakes that I
see in programs.

For example Fritz engines are using tablebases in a wrong way.
Chessbase know it for a long time and does not care to fix it to be without
mistakes.

Uri



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