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Subject: Re: A fix for the clone detection problem

Author: Roberto Nerici

Date: 02:19:50 12/01/03

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On December 01, 2003 at 04:09:14, Uri Blass wrote:

>On December 01, 2003 at 03:42:28, Roberto Nerici wrote:

>>It is a difficult area and I don't think there is going to be a really good
>>solution. I agree that Steven's suggestion could detect the case where someone
>>takes Crafty and changes just the name, but I disagree that that is useful.
>
>It is useful(I do not know how much it is useful in world championship but it is
>useful in WBEC when people do exactly that or almost exactly that).
>
>Cases that I remember at this moment
>
>Luiza=Faile
>OldBlindDog=Arasan
>Deep9=Pepito
>Syboney=pepito with different evaluation.

Yes, I agree that really blatent cheating is more of an issue in WBEC-style
tournaments, so the test suite fingerprint idea could work there. Also, for
completeness, I should also point out that CCT events now have a rule along the
lines that unknown engines would be consulted upon, presumably because there has
been some concern that exact clones might be entered.

Two last points, however (I've said enough on this already!):

1) The effort in using the test suite method becomes more of an issue the
smaller the event and I would expect the overhead of such a method to be more of
a problem in WBEC events than face-to-face tournaments. However, the individual
tournament organiser can make this decisions themselves.

2) I took the original post by Steven to be concerned with WCCCs and events of
that type. I still don't regard the more blatent forms of copying to be an issue
at these sort of events.

>I am not sure about spelling syboney but clone does not deserve correct spelling

Agreed!

>I suspect that the number of cases that people did not find out is even bigger.

Probably true :-(

Roberto/.



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