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Subject: Re: Remove the pawn and TBs show the draw !!!

Author: KarinsDad

Date: 19:38:08 05/01/00

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On May 01, 2000 at 19:51:05, Laurence Chen wrote:

[snip]
>>
>>
>>Yes, but are you sure that all positions that are 5 man TBs as draws cannot be
>>won with an additional pawn for the side with more material?
>>
>>A program could not "drop the pawn" and be assured of a draw in any given
>>position. Hence, how do you code such a position?
>>
>>KarinsDad :)
>I'm sorry KarinsDad, I was trying to answer the post about how would one figure
>out if it was a draw.  The best way to figure out a plan is to "dream up" of a
>position, and try to work from the actual position to get to the dream position.
> This is quite easily done for human players to dream up of positions.  By
>removing the pawn it shows that White's extra material is not sufficient to win.
> Therefore it must try to somehow exchange rooks in order to win.
>Laurence

Yes, I understood that, but I did not make myself clear. Put the pawn on a7
instead of g6 and it is difficult for white to lose.

My point was that your dream up method just happens to work for this position,
but it would not work for a lot of other positions (removing the a7 pawn from
the position I mentioned would seem to indicate a draw when it is a clear win).
Therefore, it would be difficult if not impossible to use such a method in a
program. The question then comes down to what method (shy of 12 piece
tablebases) will work?

KarinsDad :)



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