Author: Enrique Irazoqui
Date: 19:24:38 01/05/99
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On January 05, 1999 at 20:55:11, Matthew Herman wrote: >On January 05, 1999 at 17:33:37, Enrique Irazoqui wrote: > >>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 > >The position 8/7k/3R4/7P/6K1/4b3/8/8 w - - 0 1 between Tiger and Rebel10 leads >to a won position in 11 moves as reported by the ken thompson egtb. > >Tiger might or might not find it but there is a definite win. Of course it's a win, but the question is that Tiger won't find it. Take a look at the moves before and you'll see that it doesn't know how to proceed. After the tournament is finished I'll replay the game from this position. Enrique
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