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Subject: Re: Game Rybka-Shredder ended draw.

Author: Sandro Necchi

Date: 00:02:19 12/29/05

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On December 28, 2005 at 16:02:04, Oreopoulos Kostas wrote:

>I am sure that even after Qe3 there are hunderd of possibilities for black to go
>wrong. I mean defense is an art. Create the circumstances of drawing paterns.
>Not just playing the best move.

Well, of course black can make mistakes after that move, but I only told which
one was the move that changed the outcome, not that by playing such a move
anymoves black will play will be winning. Yes, the correct play is an art, but
to learn it we need to understand why one move is not precise and another one it
is...

>Maybe the best move is not enough.

I agre with you.

>This is because we are not following tablebases.

tablebases are good when there are a few pieces left, when there are more the
concepts are what is needed to find the right way.

>So what we need? The move that provides the easiest way.

That is the one...

>
>This is what we call techical difficulties.
>
>For example i think if they two programms play that position over and over
>again, the result would be smthg like 70-30, which is a definition of clear
>advantage, but not decive.

OK, it was a clear winning position but not for Shredder and maybe for many
other programs too...do you accept this?
This is also why it may be not the best solution to chose the best variation as
computer programs are not yet positional players comparable to the strongest GMs
and maybe not even GMs, but that does not change the evaluation of the
line...only that it is not suggested for computers...or a specific program...

>
>Anyway. Pure speculations :)

Sandro



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