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Subject: Re: How Rebel plays at SSDF the bare facts, just statistics and thoughts

Author: Amir Ban

Date: 05:37:44 06/18/98

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On June 18, 1998 at 07:00:17, Enrique Irazoqui wrote:

>On June 18, 1998 at 03:58:08, Ernst Walet wrote:
>
>>All in all it is quite clear to me why Chessbase took so long to produce their
>>auto232 player, they had to figure out how to kick Rebel's butt!
>
>This is false. Frizt 5 does not beat Rebel 9 in a different way than it beats
>any other program.
>
>When I said that Rebel 9 did not learn in its SSDF match against Fritz 5, I got
>mixed up with the Rebel 8 - Fritz 5 match. Rebel 8 played 13 losing doubles.
>Rebel 9 played no doubles at all, as anyone can check. So all this discussion
>about brain surgery, Rebel 9's learner being upset in that match, etc., makes no
>sense at all because it's all based on this mistake made by yours truly. So much
>for relying on memory when talking about facts :((((((((((
>
>My apologies, Enrique


That's still not quite right. The Rebel 8 match had 7 identical draws, which
accounted for almost half the points it scored (8.5). I took interest in that
match when it was debated and posted what I found here. I found that Fritz
scored 79% in the match, while if doubles were discounted it would score "only"
77%. Big difference.

This doesn't mean that Rebel could not become a victim of the Fritz learner, but
the facts show that it didn't, this time.

We now know that the Fritz learner will seek to repeat a draw. That this is
risky strategy was shown in this match. A learner should try to repeat wins
only, and prehaps should avoid not only past losses but past draws.

Amir





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