Author: Uri Blass
Date: 09:53:25 04/05/02
Go up one level in this thread
On April 05, 2002 at 12:46:59, Oliver Roese wrote: >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 You got the reply in another post Chessmaster9000 solve it and see the full tactics. It seems that you only need the right extensions. Uri
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