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Subject: Re: Enrique games-problem with Junior5 and adjudicated games

Author: Enrique Irazoqui

Date: 14:33:37 01/05/99

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On January 05, 1999 at 16:34:27, blass uri wrote:

>This is the position from game 13 of enrique's games:
>8/8/2k3P1/p5r1/K7/8/2B5/8 w - - 0 1
>
>black last move was kc5-c6
>
>and my Junior5 prefers 79.Bd3 at depth 20 and at bigger depthes
>
>In enrique's games Junior5 chose 79.Bb3 with evaluation -1.12
>and my Junior5 gives 79.Bd3 with evaluation -0.xx at depth 20 and at bigger
>depthes
>
>What is the reason for this
>
>Is it a bug in the Autoplayer or another reason?

Amir can answer better than me. I don't know why a given program plays a given
move at a given moment. Right now I can't check this out because I would have to
stop playing the remaining matches. Once the tournament will end, in about 2
weeks, I'll be more than glad to analize this position with J5.

>Another problem is that games are adjudicated too early
>
>game 146 between tiger11.7.5 and Rebel10 was adjudicated as a draw in the
>following position
>
>8/7k/3R4/7P/6K1/4b3/8/8 w - - 0 1
>
>Is it a draw by tablebases?

Tiger and Rebel don't use tablebases. I adjudicated this game because no
progress was being made. Again, I can replay from this position when the
tournament will be finished.

Enrique

>I think that even if the result is positive the programs should play it because
>black may do a mistake.
>
>The fact that the programs see no plan to win does not prove that it will be a
>draw.
>
>I saw cases when programs succeed in losing dead draw positions.
>
>Uri



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