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Subject: Re: Opening Books / Tablebases

Author: Ulrich Tuerke

Date: 00:36:17 05/09/00

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On May 08, 2000 at 22:18:37, Adrien Regimbald wrote:

>Hello,
>
>I think that restricting computer engines in a tournament with humans is
>rediculous.
>
>- Some human players is that they are an "external resource".  This is
>nitpicking over details - a program could easily include such information within
>the binary itself.
>- Some human players complain about not having an opening book or endgame
>tablebases to use themselves.  There may be some reasonable argument here ..
>computer programmers will argue that the humans had a chance to learn the
>openings / endings through books and have memorized the openings / endgame
>techniques .. the humans will argue that they don't have perfect recall of this
>information
>
>It seems to me that it is only reasonable to allow the computers access to
>opening books / endgame tablebases as needed.  Perhaps human players will be up
>in arms about it, but it is an extremely unfair handicap for a computer to be
>playing against (for example) a GM who has spent their life memorizing the
>latest and greatest variations in all of their openings.
>
>To show how rediculous the perfect recall argument is - if you take this far
>enough, human players aren't given diagrams when they play of where the pieces
>are best, and humans can't always remember this, so computer shouldn't be able
>to have these internal tables of piece/square bonuses for positional evaluation.
> If we continue this far enough, a computer's eval would be completely
>disallowed, as humans aren't even given piece values when they sit down to play.
>
>I mean, really, come on - it's quite rediculous.  If you took 2 GM strength
>players, and you somehow had the ability to take away all the variations that
>one GM had memorized, and all of the familiar endgame positions, who do you
>think would win?  That's exactly what is being done to the computers being
>forced to make concessions concerning opening books / endgame tablebases.
>
>As an author of an engine myself, I get quite incensed when people say my
>program is "cheating" by using an opening book.
>
>What is the opinion of other authors on this?
>
>
>Regards,
>Adrien.

I fully agree with you.
Unfortunately, it will become increasingly difficult, to have a computer
participate in a humans' tournament (the chance is already zero today unless you
pay a lot). However, I doubt that compromises of the above kind (omit some
hardware or databases) will stop this  trend. I am afraid, we have to live with
it.

A "fair" chance to compare were man-machine events where it was clear from the
beginning that humans have to play machines. I guess these are all gone now.

I think, the best chance today to get human opponents for a prog are in fact the
chess servers.

Uli




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