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Subject: Re: What constitutes a clone?

Author: Robert Hyatt

Date: 17:54:36 02/16/05

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On February 16, 2005 at 15:54:58, Charles Roberson wrote:

>On February 16, 2005 at 15:41:40, Robert Hyatt wrote:
>
>>On February 16, 2005 at 15:31:35, Charles Roberson wrote:
>>
>>>On February 16, 2005 at 14:40:41, Dann Corbit wrote:
>>>
>>>>On February 16, 2005 at 13:40:07, Russell Reagan wrote:
>>>>
>>>>>On February 16, 2005 at 10:46:39, Robert Hyatt wrote:
>>>>>
>>>>>>On February 15, 2005 at 18:38:43, John Merlino wrote:
>>>>>>
>>My original intent for crafty was that someone would take the complete program,
>>and replace just the part they were interested in fiddling with.  Say the
>>evaluation.  Or the search.  Or a new move generation approach.  Then they could
>>test their ideas to see if they were good, bad or ugly.  But once competition in
>>a chess event is attempted, I think the non-unique parts of the code have to be
>>the product of the author's work product.  Eval, search, anything that can take
>>a given input and produce more than one correct output.
>
>
>    Yes, that is the start of what I am looking for.  "anything that can take
>    a given input and produce more than one correct output."
>    Thus, a legal move generator is clonable, but the move ordering
>    mechanism is not.

that is a variation of the "litmus test" for patentable software ideas...



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