Author: Uri Blass
Date: 07:44:03 12/03/00
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On December 03, 2000 at 09:02:08, Stefan Meyer-Kahlen wrote: > >In contrast to my believe this subject is of interest here so I will try to give >my point of view as objective as possible. > >Marcus Kästner claimed that he has tested the Shredder London version or even >beta versions after that. The question is if he claims that he tested Shredder london or if he claims that he knows about results of Shredder london that he does not have. The 2 claims are different and it is possible that beta testers of Shredder different versions told him about their results. I remmeber that Enrique posted here games of one of the version of shredder after Shredder4.16 and it is possible that the rating of Shredder is based on the results of Enrique and other beta testers and also on his results of Shredder4.16. The name shredderX only tells me that it is after shredder4 and before shredder5 so I see no problem with publishing results of shredderX > He also claimed that he has played many test games >with this versions at tournament time controls and found out that Shredder is >inferior to my competitors programs. In reality he couldn’t have done that as he >didn’t have any version of Shredder after June 2000, so his statements were not >based on facts but on his believe which is fine if he had said so. It is clear from the information that he gives that he is more optimistic than the programmers about the tigers. In the Rebel site I read that Tiger13 and Gambittiger are 50-70 elo better than tiger 12 and he is more optimistic about the improvement of tiger. I prefer to believe the programmers about the level of tiger because they have no reason to say that tiger is 50-70 elo better when it is clearly more than it and I believe that they know all the information that markus knows and they have no reason to hide the fact that the tigers are more than 50-70 elo better than tiger12 at longer time control assuming that it is the case. I saw one good tournament of Chessfun when the Tigers got good results that suggest that it is more than 50-70 elo improvement but we need more information and the result of one tournament may be misleading and only more results like it will change my opinion. Based on the information by other programmers and on the information of Markus about shredder(Markus claimed that Shredder is 100 elo better than Fritz6(6a) when most of the games are of Fritz6a) it is possible to get the conclusion that Shredder5 is better than Tiger so I do not think that he was counter productive for Shredder sales. <snipped> >Ed, Christophe and Jeroen: I am ready to believe you that Jeroen was the one who >did the opening choice in London if you all say so, but there is one problem: In >his magazine Marcus Kaestner describes in details how HE prepared Tiger against >various opponents, for example on page 17 against Nimzo. He also claimed that he >has recommended a line against Shredder in the Belgrade Gambit to Ed and showed >him a 20 moves long line that he expected Shredder to play 5 minutes BEFORE the >game (page 13), well, it WAS the line that Shredder finally played… It does not prove using insider knowledge assuming that marcus tells the truth in his magazine. The main question is if it was impossible to expect that the commercial shredder4 will play the same line. Uri
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