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Subject: Re: »Kurzbuch.CTG« 6 plies deep only, ~20.000 positions (for download)

Author: Mike S.

Date: 17:30:01 10/22/02

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On October 22, 2002 at 08:31:34, Chuck wrote:

>(...) However, any
>one commercial book will give an unfair advantage to the program for which it
>was developed.

I'm sure that is over-estimated a lot (except for killer variants, but those are
very few, and I don't even think most books have any, and book learning limits
their chances). For example, If you could play 1000 games Fritz+Fritz book vs.
Shredder+Necchi book, and then 1000 games Fritz+Necchi book vs. Shredder+Fritz
book, I doubt that a "statistically significant" difference would occur.

(A theoretical example, because AFAIK you can't convert the Necchi book to CTG.)

>(...) Are there any recommendations as to which is the best opening
>book for universal use in a tournament?

I'm not sure if it's the best option, but it can provide much more variety than
common sets of opening positions: The small "Kurzbuch" was generated for the
Fritz GUI from a larger database of (human) master games. The book is exactly 3
moves deep for each variation. I slightly editied it to achieve a bit more
variety, i.e. less often sicilian after 1.e4.

http://members.surfeu.at/mscheidl/Kurzbuch.zip

It certainly doesn't favour any engine, with the possible - theoretical
-exception of engines which are especially prepared for the early opening. (I
always thought, since years ago, Rebel has a special talent for that, but that
can't be tested in the Fritz GUI).

Sometimes you'll see that the engines follow known theory, more often they will
create new and unusual continuations.

Advantage: Engines will create (IOW "shape") their own middelgame, don't go into
endgame right from the book's end.

Disadvantage: Games will probably (most often) be useless for the opening
studies of a human player.

Regards,
M.Scheidl



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