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Subject: Re: Tough Endgame for the bot, silly for you.

Author: Oliver Roese

Date: 09:46:59 04/05/02

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On April 05, 2002 at 11:57:02, Uri Blass wrote:

>On April 05, 2002 at 11:20:01, Oliver Roese wrote:
>
>>Hi!
>>
>>This position is from
>>http://www.cs.ualberta.ca/~tony/RecentPapers/report.mac.pdf
>>(see also http://www.talkchess.com/forums/1/message.html?221364)
>>
>>[D]5k1b/7P/2B1KP1P/8/8/p7/P7/8 w - - 0 1
>>
>>The author writes:
>>"After more than ten hours of play the position in [figure 9] was reached and
>>since
>>neither side was making progress the game was adjudicated after white's 111th
>>move of Bc6-d5. "
>>...
>>"Even today I doubt if many programs can do any better."
>>
>>I tested this somewhat with crafty and can confirm it .
>>Although this is a rather easy win for a human it is hard for an engine,
>>since the winning plan distracts several heuristics. In order to win, white has
>>to:
>>1) playing f7(Be8), thereby giving more room for the enemy pieces.
>>2) moving his king far away from the hotspot to the innocent looking pawn a3.
>>3) trading the "dangerous" pawn h7 against blacks pawn a3.
>>
>>[D]4Bk2/5P1P/7P/8/8/pK6/Pb6/8 w - - 0 1
>>
>>In this position i abandonned the search after 30 minutes (although my system is
>>rather slow).
>>
>>Is there a program that could do better?
>>Would this position remain unsolved for many years?
>>
>>Oliver
>
>I am sure that there are programs that can find trading the h pawn for the a
>pawn.
>
>For example my program that it's only knowledge about pawn structure is that
>more than one pawn in the same file is bad and knows nothing about passed pawns
>can find it.
>
>I also believe that it is not hard to solve the problem by the right knowledge.
>

Maybe true or not.
But _which_ program is it then?

Oliver

>Uri



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