Author: Christophe Theron
Date: 10:32:25 01/14/02
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On January 14, 2002 at 11:39:53, Gian-Carlo Pascutto wrote:
>1) The interface defaults to 'GUI books' and 'rebel.bk'. I assume the better
>settings is to disable GUI books and to enable 'Engine Books'? Is the Gambit
>Book on the Rebel site a better book for Gambit Tiger or is it really more a
>'fun book'?
>
>2) I read some posts in the archive that Christophe was going to adapt Tiger to
>play well at any timecontrol with any amount of hashtables. Has this been
>implemented in Tiger 14.0? Can I let it play 1 0 with 192M hashtables without
>problems?
Yes it has been implemented (introduced with Chess Tiger 13.0).
The only rule for Tiger's hash tables now is THE BIGGER THE BETTER (naturally
trying to avoid swapping but I'm confident you know exactly what we are talking
about here :).
Using 192Mb for bullet is fine and even recommended.
>3) How aggressively does Tiger learn? I read that it only avoids playing losing
>lines twice. Also, does learning work if I disable GUI books? It looks as if all
>book functionality is duplicated...
Tiger uses its own learning system which is DEFENSIVE only. I'm not interested
in seeing Tiger winning the same game over and over again, so Tiger will not try
to do this. But it will try to avoid losing the same game over and over again,
which is why I call this "defensive book learning".
>4) Any settings that make the engine stronger? Or the defaults are still the
>best?
The default settings are still the best. No better setting has been found so
far, to the best of my knowledge (unfortunately).
There has been some suspicion that Gambit Tiger aggressive could be the best at
longer time controls, but I cannot confirm this with mathematical evidence
(unfortunately, once again, because this setting plays very interesting games).
Christophe
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