Author: Sedat
Date: 23:35:23 01/07/05
Go up one level in this thread
On January 08, 2005 at 00:28:09, Brian Richardson wrote: >On January 07, 2005 at 19:36:24, Sedat wrote: > >>On January 07, 2005 at 18:36:56, Russell Reagan wrote: >> >>>On January 07, 2005 at 13:07:03, Ingo Bauer wrote: >>> >>>>Hello >>>> >>>>In case you are still amazed why the engines do different moves in differnt GUI >>>>do the following test: >>>> >>>>Two engines with a fixed balanced opening position (no books). Now start a 20 >>>>Game match in the same GUI (choose one) with the same position and the same >>>>color for each engine, of course learning should be switched off and the time >>>>for each game should not be too short (eg. 15 min each side) >>>> >>>>You will see that you do not get 20 identical games. Not all moves are allways >>>>reproducable, most chess engines are not deterministic and it is gettiing worse >>>>if you use dual engines. >>>> >>>>Bye >>>>Ingo >>> >>>If there are nondeterministic single-cpu chess engines, then maybe a better test >>>for GUIs would be to use simple, open source engines. Do you think a simple, >>>open source engine such as TSCP is more likely to be deterministic? >>> >>>Or does the issue of time cause undeterministic behavior no matter what? i.e. >>>maybe a background process (system process, firewall, antivirus, etc.) randomly >>>takes enough CPU time away from a chess engine to cause nondeterministic >>>behavior? >> >> >>Always while i am running engine-matches : >>------------------------------------------ >> >>-No surfing on the Net,no working with Word,not doing some Programming etc. >> >>-Before to start each tournament under both GUI's the PC is restarted ! >> >>-For each GUI was setuped separate (different)folder of engine.exe >> >>-No any program is insalled in the TaskBar ! >> >>Sedat > >It might work if you only search to a fixed depth, not based on any time >controls from the same (e.g., Nunn) starting positions. Thanks for your interesting... Yes but day and night i organize tournaments, ratings between chess programs Homepage: http://www.geocities.com/sedatchess/ And thats why i must use time control becouse my goal is to choose exactly under which GUI will be more stabil for the winboard engines ! Best, Sedat
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