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Subject: Re: Was Junior lucky to have been playing Black?

Author: Uri Blass

Date: 07:21:20 02/06/03

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On February 06, 2003 at 10:06:26, Louis Fagliano wrote:

>Junior made a what was thought to be a spectacular attacking sacrifice but which
>in the end turned out to be merely a drawing sacrifice.  However, it was playing
>Black.  Thus, achieving a short draw with the Black pieces in a match is
>considered good since having White in a match is equivalent to having the serve
>in tennis and drawing with Black might be considered breaking your opponents
>serve.
>
>But what if Junior had White played a similar sacrifice only to end up with a
>short draw?  It would have been considered stupid, right?  Throwing away a
>chance to win with White?  Yet I don’t know if the program distinguishes between
>having White or Black when considering a speculative sacrifice such as that one.
>
>Is there an algorithm in the program to make it value lees an early, just out of
>the opening drawing sacrifice when it has White then when it has Black?  Should
>such a factor be added to it?  And are there any other programs that have that
>feature?

No need for a new algorithm

If the computer see negative evaluation it will go for a draw and if it is
positive it will not go for a draw.
If the computer is black it will see negative evaluation in more cases.

Uri



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