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Subject: Re: IBM Printouts

Author: Robert Hyatt

Date: 06:36:14 01/21/00

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On January 21, 2000 at 01:09:27, Martin Grabriel wrote:

>why then was Kasparov so uptight about seeing the log? In his mind perhaps he
>thought the log could prove cheating? I tend to agree with the Proffessor that
>the log doesn't prove anything..so Kasparov was wrong on at leaset one count --
>he believed the log would/could prove cheating.
>


A log is a file of everything displayed by the program.  The log can be
modified.  The program could have been 'fixed' so that if a GM 'radioed'
in a move to play, the program could have done a search on that move to
get a PV, but faked the score upward a bit to make it look legitimately
better than the best so far.  And there would be no way to detect this
other than to look thru their 100K lines of C code, which would of course
_not_ include the module "void CheatingCode(move_t suggested_move)"

:)




>
>On January 20, 2000 at 22:06:17, Robert Hyatt wrote:
>
>>On January 20, 2000 at 19:08:25, Chris Carson wrote:
>>
>>>On January 20, 2000 at 14:27:12, Joshua Lee wrote:
>>>
>>>>Do they prove cheating or not?
>>>
>>>They do not prove cheeting, however they raise some
>>>questions.  The logs I read from the comercial programs
>>>leave not doubt about a game, the DB logs do.  IMHO.
>>>
>>
>>
>>How so?  Their output provides the same information that most programs
>>provide...  PVs, scores...  times...  etc...
>>
>>
>>
>>>The logs should easily prove not-cheating and they do not
>>>prove that either.  I do not believe at this time that
>>>cheating occured, however, the DB team has not cleared itself
>>>of a simple to prove issue.  IMHO.
>>
>>
>>I think that is _nonsense_.  Logs can _not_ prove that they didn't cheat.
>>Nor can they prove that they did.  I'll be more than happy to set up a demo
>>for you where _I_ make crafty play a move, and the logs will make it apparent
>>that _it_ chose that move.  Would take an hour of programming.
>>
>>You can not prove a negative.
>>
>>
>>>
>>>I do not think it will be resolved.  I think IBM got a "free bee",
>>>packed thier toy and went home.  IBM has no incentive to say or do
>>>anything else and will not.  IMHO.  :)
>>>
>>>Best Regards,
>>>Chris Carson
>>
>>
>>
>>What else is there to say?



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