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Subject: Re: Will next version of Junior have underpromotion code?

Author: Dave Gomboc

Date: 16:11:21 06/07/99

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On June 07, 1999 at 17:01:21, blass uri wrote:

>
>On June 07, 1999 at 16:33:47, Dann Corbit wrote:
>
>>On June 07, 1999 at 15:24:21, blass uri wrote:
>>[snip]
>>>The question is what is the number of cases when underpromotion changes the
>>>practical result of the game and not the number of cases when underpromotion is
>>>the shortest way to win.
>>That is not the question I was examining.  We could also write a program that
>>naively ignores e.p. rules and tosses a pawn once in a while because of it.  It
>>may still win the game, so what is the point?  A program that misses the best
>>move misses the best move.  To gague how much stronger a fixed program would be
>>would be difficult or even to find out how much more often it will result in a
>>win.  But a program that makes suboptimal choices can clearly be improved by
>>making optimal choices.
>
>
>
>I agree but  the question is what is the demage in rating from not seeing
>underpromotions.
>
>I think that it is less than 2 elo points rating.
>
>Uri

I think they probably gain elo from ignoring them.  In practice, underpromotions
are largely a waste of time to consider.

Dave



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