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Subject: Re: The mistake in the ssdf list

Author: Howard Exner

Date: 12:15:24 10/03/98

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On October 03, 1998 at 04:09:23, blass uri wrote:

>In the ssdf list a program are playing long matches and I do not like it because
>it gives an advantage to programs that are strong in learning a specific
>opponent

An example of this was a thread here some time ago when Fritz5 first
became number one on the SSDF list. Fritz5 vs Rebel8 was a complete wipeout
as Rebel8 kept repeating the same losing line while Fritz5 provoked the same
winning line for itself. The percentage of duplicate games was uncommonly high.
However when Fritz5 played Junior4.6 (either 4.6 or earlier) the duplicate games
were I recall non existant. This was due to Junior's wide and varied book (
in my opinion a nice feature for consumers). These games are all available
for download from Tony Hedlund's site.

http://home.interact.se/~w100107/welcome.htm

>
>I suspect that fritz5 is a program that is strong in learning a specific
>opponent
>
>I am not against learning but I think that it is better not to play against the
>same oponent again and again.
>
>It is better for example that fritz5 will play the first game against Genius5,
>the second game against Mchesspro7, the third game against Nimzo98...
>
>If it has not enough opponents and have to play against the same opponent many
>times then at least it should play against other opponents before it plays
>a game against the same opponent.
>
>Uri

Will computer programs ever be able to recognize which computer opponent they
are playing? Other than be informed by some auto-play built in feature I
can't see how they will determinre who they are playing. This was a nice
advantage for Deep Blue as it knew it was playing Gary K while other
computers just "play the board".



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