Author: Christophe Theron
Date: 10:51:44 04/22/01
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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.
Christophe
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