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Subject: Re: Is IsiChess a Crafty clone ?

Author: Gerd Isenberg

Date: 17:29:15 08/23/04

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On August 23, 2004 at 17:41:38, Matthias Gemuh wrote:

>
>
>>
>>Such "standard" code like NextMove is IMHO not sufficent to proof El Chinito as
>>Crafty clone. Did i missed something?
>>
>>BTW. Is it legal to disassembly others executables?
>>
>
>
>
>Hi Gerd,
>Is "such standard code like NextMove" also implemented the same way in your
>engine, IsiChess ? Are the Crafty evaluation functions in ElChinito also
>standard and in IsiChess ? Are the reported Crafty bugs in ElChinito also
>standard and present in IsiChess ?

That IsiChess has a complete other movegen does not proof, that El Chinitos
getMove is a copy of Crafty, even if it is likely, due to the other point with
eval and the 99999 compare.

I admit that i copied some source code here from CCC via clipboard into my
program, for instance kogge-stone algorithms. The same might be true for others,
and the intention i and others post source-code here is to share it and to get a
feedback, improvements and other ideas.

Is Crafty's getMove-code really so unique and some code snippets got never
posted here? If i implement some quicksort from some published pseudo code, it
is not unlikely that i get the same assembly, despite other identifiers.


>You create the impression that the ElChinito guy is the one doing the right
>thing and Paul H. is rightly to be blamed for his catch-cloner efforts.
>Sorry, but I don't share your strange opinion.


For what reason does one disassembly other chess programs?
Was there a beginning suspicion with El Chinito?

Gerd

>
>Matthias.



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