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Subject: Re: Is Shredder's secret simply search dept ?! (Some figures here)

Author: George Tsavdaris

Date: 14:10:57 12/20/04

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On December 20, 2004 at 16:32:24, Jouni Uski wrote:

>Shredder 8 reaches quite stunning averaga search dept. E.g. with only 15
>second/move average with Pentium 2400 and 128MB hash it averages 15,2 ply! For
>comparison Fritz Bilbao and Gandalf 6 reach both same 12,7 ply. No wonder
>Shredder beats them 13 - 7 and 14 - 6. Of course 2,5 ply is a lot difference!
>Is there any amateur or pro engine, which can equal Shredder in depth - Junior's
>half plys can be forgotten.
>

 SOS 4 does a very deep search too. In some positions it is competitive even
with Shredder. (At number of plies not judgement ability). But i don't really
believe that this is its(Shredder) secret. Thorsten suggests that the secret
maybe the high positive scores but again i can't find a reason behind that. So
what, if Shredder evaluates high the positions? What does this has to do with
playing strength? I see this only as a feature of Shredder and not as an
advantage. Perhaps i am wrong.....

 But why Shredder should has to have a big secret? It is just the strongest
program the last years and maybe this is not due to a big secret, but just be
slightly better from the competition in many areas. Slighly better
pruning/evaluation/play at closed positions/endgame, ...etc. It doesn't have to
be an area that has a secret.......This doesn't mean of course it hasn't one:-)



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