Author: Robert Raese
Date: 11:48:56 04/22/01
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On April 22, 2001 at 13:51:44, Christophe Theron wrote: >On April 22, 2001 at 13:24:19, eric guttenberg wrote: > >>Mike, >> >>I don't know what selsafety is, though I suspect it may have something to >>do with king safety. It is found in the Chess Tiger notepad which is in >>your Rebel file. The default value is 6; several people have changed the >>value to 12 and have reported improved winning percentages. Christophe >>Theron responded to one such report by saying he would take a look at >>it in his work on the Tigers. I don't know if there is any consensus >>from Tiger users as to whether using the Selsafety value of 12 is >>better or not, but it does appear possible. >> >> >>eric > > > >You will find the "SelSafety" line in a file named CT.INI, which is in the >program's installation directory (typically C:\Program >Files\Rebel\Rebel-TigerII). > >It has nothing to do with king safety. > >It is about Selectivity Safety. Higher values give a better safety to the >selective algorithm (at the cost of slowing the program down). Lower values >increase the effect of the selective system, speed the program up, but also >increase the risk of selectivity errors (missing an obvious tactical shot for >example). > >The default value of 6 was optimal at the time we released Chess Tiger 13. I >have not tried to change this setting in Chess Tiger 14, so it is not impossible >that given the other changes in the engine another default value would perform >better. > >I hope I will get enough feedback on very long matches (400 games or more) to >figure this out. how does the time control for these test games influence the result? usually i play tiger at ICC with time control of 5 minute blitz. if i want to know if the +12 setting is stronger at game in 5 + 3, is it necessary to test at that time control, or can information about that be extrapolated from the tests at longer time controls? > > > Christophe
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