Author: Uri Blass
Date: 16:15:03 01/03/03
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On January 03, 2003 at 18:22:07, Stephen Ham wrote: >On January 03, 2003 at 18:15:27, Aloisio Ponti Lopes wrote: > >>On January 03, 2003 at 17:57:03, Stephen Ham wrote: >> >>>Dear Readers, >>> >>>Shredder 7 is advertised to have a "Triple Brain" and the wording suggests it's >>>an option for us to use. >>> >>>Fine, but my Shredder 7 instruction manual doesn't mention anything about it and >>>neither does the HELP index button and neither do any of the drop-down menu >>>buttons. >>> >>>Do any of you readers know how to activate the "Triple Brain" function? >> >>That's a feature for the UCI version of Shredder, not the Chessbase (Fritz-like) >>GUI. Usually it is an option listed in "Mode" menu. You'll have to choose which >>engines to load. Try for example Shredder + Ruffian, it seems to be a good >>combination! >> >>A. Ponti > >Dear Aloisio, > >Thanks for the helpful reply. > >What is your experience with the "triple brain" feature, Aloisio? Does it indeed >make the resulting moves stronger? I imagine that it must divide the total >allocated RAM by 1/3 each, so that means that there won't be many hashtables >available for long searches. Does that then mean it's only effective for faster >time controls? > >Thanks in advance for your input. > >All the best, >Stephen No I never tried it but I think that if it can be effective then it can be effective only at long time control because at short time control tactics is more important and 2 engines that run slower are going to see less than one engine. My opinion is that hash tables are not very important and doubling the hash tables is not supposed to increase the rating by more than 6-7 elo. I never tried the tripple brain but I understood that it may divide the hash only by 2 My understanding is that There are 2 engines that calculates at the same time and the third thing is not an engine but some small program that decides based on the main lines and the score to which program to believe when the search is finished. I may condsider to try it because I am going to play in a correspondence tournament that begins in 15.1 as the 6th board of Israel I am going to play in the 15th Olympiad - Preliminaries (2nd Email Olympiad) Preliminary Group 3 (CCO15S3) It starts in 15.1 It means that I may buy shredder7,Fritz8 and Tiger15 in the near future. Uri
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