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Subject: Re: The mistake in the ssdf list

Author: Moritz Berger

Date: 02:24:29 10/04/98

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On October 03, 1998 at 17:14:21, Enrique Irazoqui wrote:

>It doesn't matter to whom? It matters to Blass, since he has an unlearned
>Powerbook. It matters in fact to everyone. What you say above is true in theory
>and doesn't apply in practice. None of us has the learned Powerbook after 2,000
>games. It doesn't exist.

You could at least take all publically available 40/120 games. I guess you would
end up with several hundred.

>I agree there is this huge difference you mention between a learned and an
>unlearned book. And, if I am not mistaken, this is precisely Blass' point.
>
>I think it matters to know what is being measured when we quantify and rate.

Don't forget that a book with optimal weightings against other computers is very
likely not the best choice against human opposition.

I'm mostly interested in how a program performs against humans, no
anti-computer-killer book can help here. In fact, since every player has his
individual preferences, *relative* performance even in openings that "computers
don't understand" could be great vs. humans if the computer plays into its
opponents weaknesses.

In my opinion, the PowerBook is a good starting point. If you want to maximize
performance, you have to do some adjustments via learning or manual editing of
book weightings.

Moritz



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