Author: Robert Hyatt
Date: 09:38:36 01/31/04
Go up one level in this thread
On January 31, 2004 at 12:12:13, Uri Blass wrote: >On January 31, 2004 at 12:00:53, Chessfun wrote: > >>On January 31, 2004 at 11:46:42, Uri Blass wrote: >> >>>On January 31, 2004 at 11:18:31, Anthony Cozzie wrote: >>> >>>>. >>> >>>I can add that the problem is lack of knowledge movei has a small score for >>>supporting the pawn but the score for centralizing the king is bigger. >>> >>>Movei was slosest to mate in the following position >>> >>>[D]8/1K2k3/1P6/8/8/8/1R6/r7 w - - 0 144 >>> >>>I need to reduce the score for centralizing the king when all pawns are on one >>>side of the board including the specific case when there is only one pawn. >>> >>>I also was afraid when movei that has no bad trade code sacrificed a rook for >>>bishop passed pawn and some initiative but fortunately the sacrifice was correct >>>or Junior blundered later and I need to anlayze it to know. >>> >>>I was surprised by Junior's less of knowledge when it evaluated losing position >>>as only a very small advantage for movei. >>> >>>Knowledge about these endgames is important even without tablebases because it >>>is possible to get them as leaf position when it is impossible to look at >>>tablebases without significant slow down. >>> >>>It seems that Junior does not care to have the king near the files of the only >>>pawn when movei has knowledge about it but also knowledge about centralizing the >>>king that was counter productive. >>> >>>Uri >> >>Had Junior had 5 person bases installed then it wouldn't have played 52...Rxh4 >>which left it in a lost base position. It also would likely have changed other >>moves prior to that. >> >>Sarah. > >Yes > >Both sides had not tablebases but there was a problem of knowledge. > >Junior's lack of knowledge to put the king in the right files can be also a >problem in different positions that are not tablebases position. > >Movei's desire to centralize the king can be also a problem in different >position. > >Uri Just for fun you might check my evaluation code. I have specific code for KRP vs KR that helps. It doesn't play perfectly, but it generally wins what is winnable... And most importantly it is simple. :)
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