Author: Uri Blass
Date: 10:07:59 01/17/01
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On January 17, 2001 at 12:58:22, James T. Walker wrote: >On January 17, 2001 at 11:29:33, Mogens Larsen wrote: > >>On January 17, 2001 at 11:22:39, James T. Walker wrote: >> >>>Does anyone know if the SSDF is allowing "duplicate" games in their testing? >> >>I think they do allow doubles and so they should. Repeating winning lines is an >>obvious thing to do and if the opponent can't diverge at some point then it's >>just too bad. >> >>>Junior 6 is the worst program I know of for trying to duplicate won games. I >>>would like to know if it is inflating it's rating with this method. >> >>Is Junior different from other ChessBase programs in this area? I thought that >>the book learning was identical. Deep Fritz won't suffer on this account AFAIK. >> >>Mogens. > >It is not the book learning but the agressive use of it. Fritz does not try to >repeat won games forever. They all use book learning to avoid repeating games >that are lost. This is understandable. However Junior will repeat the same >opening as white as long as it continues to win. I have seen Junior win 14 >straight games as white Vs Fritz when the Fritz learning feature was broken as >black. This problem was fixed in a patch by Chessbase. I have watched Junior 6 >play the same opening vs CM8K as white 5 times in a row before I just gave up >and stopped playing them against each other. Junior takes it to the extreme. >Jim I remmeber that Fritz5 did it a long time ago in the ssdf games against Rebel. It is known that Chessbase programs try to repeat the same winning opening again and again and I did not know that chessbase fixed it in Fritz6. I think that saying it about Junior is not fair because Amir ban is not responsible for the learning function of Junior. Chessbase is responsible for it and they used the learning algorithm of Junior6 for more programs including Fritz5(I do not know about Fritz6). Uri
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