Re: Superko detection (was Re: [computer-go] M.Boon-Library)

["chrilly" <chrilly@xxxxxxxx>]

>
>The bad behavior behind GHI has to do with repetition scores stored in the
>HASH table, or possibly scoring based on move depths such as mate scoring
>which must be handled carefully.     You know all about this.
>
I must confess, that I know nothing about it. It was a real question. So far
I never cared about the problem. I realized that due to GHI sometimes the
mate distance is wrong. But ny programs were always able to mate. So I
considered this as no problem.
I realized also that e.g. Shredder uses a special draw value. But I thought
it is just a feature for the users.
Hydra "avoids" the problem, because the hardware does not know about
repetition of moves.  (Deep Blue-I did neither).
Avoidance: One can not enter the move in the hashtabelle. But the value is
also pushed up the tree via the minixmax principle.
I assume one can not enter value the whole line up.

Chrilly


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