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Subject: Re: Book part of the engine? (was: Unauthorized use of Rebel books)

Author: Robert Hyatt

Date: 10:29:15 05/02/02

Go up one level in this thread


On May 01, 2002 at 14:41:39, Russell Reagan wrote:

>On May 01, 2002 at 10:02:58, Miguel A. Ballicora wrote:
>
>>On May 01, 2002 at 09:33:58, Jeroen Noomen wrote:
>>
>>[snip]
>>
>>>In the meantime I have sent a letter to the ICCA to clarify matters.
>>>
>>>Jeroen
>>
>>In a competition, do you consider a book part of the engine?
>>Is anything about this included in your proposal?
>>I have not seen your opinion about this. (maybe I lost it in the dozens
>>of replies).
>>
>>Regards,
>>Miguel
>
>IMO the engine is the part of the program that selects a move to play. Since the
>opening book, and EGTB's are used to select a move to play, they are part of the
>engine, IMO.
>
>Russell


I don't count EGTBs because of the nature of the information they contain.

Steven Edwards did tables.  Eugene did them in a different format.  Thompson
did the same followed by Stiller.  Bruce did his own format.  Vincent did one
although I don't know if he ever finished it.

But, with all of that, they are all accessed in the same way, and they produce
the same identical information for the same position.  Therefore there is
nothing "unique" in them that would make my version distinct from your version,
other than the compression technique (if any) and the order of the pieces used
to produce the Godel number.

I see no problem with people sharing a good list of random numbers to see the
Zobrist hashing algorithm, any more than I see any problem sharing tables, since
the two kinds of data are identical in nature.  Books are far different,
however, and are a big sticking point in current rules.



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