Author: George Tsavdaris
Date: 10:11:56 02/16/04
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On February 16, 2004 at 10:04:12, Thorsten Czub wrote: >On February 16, 2004 at 08:22:56, Chesster Fritz wrote: > >>Forget Fritz 8....Tweak Shredder 8 to combat your new settings...I'm certain you >>could find a setting to wack the crap out of HIARCS 9! > >first i want to see if the new good style (tc05) is not losing against fritz8. >if it is good against both, it is ok for me. > >I don't think that i am capable to tune shredder8. I guess Shredder is often >optimized very perfectly by stefan and his team. they are doing a good job. >thats ONE reason why they win so often on tournaments and championships. > >But IMO there is something WRONG with the program. a bug, a feature. or maybe >this is due to new ideas of stefan. it seems shredder8 plays different and has >strange effects people fail to reproduce. you can read about that in almost all >forums. I don't know what bug you are talking about, but Shredder 8 makes the most powerful analysis i have ever seen by a program. It understands ~35% of the positions MUCH better and much quicker from Chess Tiger 15.0 and from others. Only Deep Fritz's 8 analysis is comparable with Shredder's 8. And as we have seen until now, no program can stand head to head with Shredder 8. One small bug i noticed is the crappy variations is giving for some endgame positions, especially when it finds a mate. One other annoying feature is the high score it gives for some positions where one player has an advantage, just like Shredder 7/7.04. In many positions where Chess Tiger 15.0, Fritz 8, Ruffian 2.0 and Junior 8 give a +0.55 to +0.85, Shredder 8 gives a +2.10 just like it happened with it's predecessors. But if a big number of these evaluations of Shredder 7.04/7 is just untrue, the most of the high score evaluations of Shredder 8 are representing the truth about the position. And there is no reason if a position is better for one side, to give it +0.80 instead of +2.20 or +3.80 or more. So it will be good if all programmers agreed to a rule when a score of 0.00 means a draw and a score of 10.00 a 100% win and the scores between them, to correspond in a linear way to the probability of winning. Anyway some -not so rare- times even these high evaluations of Shredder 8 is wrong. One almost general rule is when the evaluation goes up to +3.2 then Shredder 8 is right. Of course there are some endgame positions that this rule is wrong. But in general Shredder 8 is a brilliant piece of software and of course all the people have to buy it.
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