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Subject: Re: Usage of general.ctg book+CB learner by ChessMaster in SSDF testing

Author: Uri Blass

Date: 01:53:57 11/01/03

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On November 01, 2003 at 02:40:42, Sandro Necchi wrote:

>On October 31, 2003 at 18:00:34, Rolf Tueschen wrote:
>
>Hi, Rolf,
>
>>Sandro,
>>just a question of a more general content. I saw that you didn't comment on the
>>whole Leiden& Book author debate. Still - could you give your opinion to the
>>following question?
>
>OK, I think one should look only on his side and not criticize others...do you
>understand what I mean?
>Everybody know how good is Jeroem, still when you make a book for a chess
>program you may experience that sometimes things do not work as expected. This
>can happen to everybody and I do not see why criticize a book maker for those
>things...
>I always said that the opening book is part of a chess program and an important
>part even if not the most important one which is the chess engine.
>For me to evaluate a chess program without the opening book is like to evaluate
>an airplane without the wings...it makes no sense.
>
>>
>>What do you think about the question that a particular & very successful book
>>author (like yourself for example) could be engaged to build the book for
>>several different machines which participate in the same tournament at the same
>>time? Would you find this ok? Or do you see problems of loyalty or whatever?
>
>I think there should be a limit to that. I would say no more than 2 programs and
>the book should not be exactly the same.
>I mean for me it is a sort of competition with other book makers. If I am
>partecipating with one program only and another with 3 or more he has more
>chances to win and so the result would be less important...I hope you understand
>what I mean.
>If the book is made by the same team for all chess programs, how can one call
>himself maker of the opening book who got the title? Of course he got it...how
>could have been otherwise?
>
>>
>>If a certain successful book is given to many programs, how fair the competition
>>is in your eyes from the perspectives of the "other" programs which don't get
>>the good book?
>
>Yes, this is unfair to me.
>Also I do not see how this can be done (allowed) without the permission of the
>author...
>
>>
>>Finally a question that always interested me as a CC layman: how many % you
>>estimate the importance of a good book for today's chess machines?
>
>This is a very good question!
>I always said, since 1978, that a good opening book is essential in today chess
>programs. It is even more today because the programs are stronger and there are
>faster hardwares.

It can be a reason why it is not important.
After all if programs are good enough they can also find better moves
than the book moves by search.

>So, now it shoud be clearified what a good opening book is. To me a good opening
>book is something that helps the program to play better and score better.
>This means that even a small book which brings to positions more suitable to a
>specific chess program is a good book. It could be the best one for that
>program.

I agree and this reason is good enough not to be afraid when other programs use
a book that was not build for them.

I do not see the commercial demage for someone from the fact that chessmaster is
using general.ctg

I am not sure if this book is better for it then the book in the chessmaster CD
and I do not see why other people take it as obvious that a book that was not
build for chessmaster is better for it.

I do not like all the complain of unfair advantage when it is even not proven
that there is an advantage from using general.ctg

I also do not think that the advantage from using a learner is very big because
an old version of Ruffian without a learner did good result in the ssdf games
inspite of the fact that Ruffian does not evaluate pawn storms.

Uri



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