Author: Manfred Meiler
Date: 07:15:28 05/25/03
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On May 25, 2003 at 09:57:58, Mr j smith wrote: >A few yrs ago, I recall Shredder came out with a unique feature called triple >brain. Something about 3 engines looking at the position at the same time. > >Did that experiment work?? I ask because I havent heard anything about it from >other programers, and it seems that Shredder may have stopped using it. > > >Have a fruitful and productive day, > > >MR Hi, the Triple Brain feature is supported also by the latest Shredder versions (but only in Shredder "Classic" GUI). I quote from Shredder help: "This is a new concept which allows you to combine two chess engines and get the best out of both. After you click "Triple Brain" you can select two engines for the team. During the game both engines will analyse the position, while a third program will decided which or the two lines is the best. This is done by examining the output of both engines to find out which has a better understanding of the current position. In Triple Brain mode Shredder will display an additional score between 0 and 100%, showing how sure the selection module is about its choice. 0% means that is impossible to tell which move is better, 100% means that one move is clearly better. Ideally the engines participating in a Triple Brain team should have a different playing styles, but should be similar in playing strength.". I've tested some Triple Brain "combinations" in a test suite called "WM-Test" (100 test positions à 20 minutes): - Shredder 7 + CM9000 (Pillen settings) - Shredder 7 + Ruffian 1.0.1 - Shredder 6.02 + Gandalf 5.1 - Aristarch 4.8 + SOS.3 for Arena. My results of "Triple Brain Shredder 6.02 + Gandalf 5.1" compared with the results of the single tested engines in "WM-Test" you'll find as EXCEL sheet (including my results of 140 tested engines) at http://www.computerschach.de/test/index.htm Regards, Manfred
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