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Subject: Re: Attack of the Clones (part III)

Author: Cesar Contreras

Date: 12:28:34 08/18/05

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First, did you got the sarcasm in my original post?. if not it is my foult
because i know english it's your mother lenguage. What I mean is that those tips
are not what i really give to somebody, but seems to be the way things work
these days.


Some thougths to make things a little clear:

a) It's illegal to copy a single line of crafty, since crafty's licence
agreement doesn't allow it.

b) It's legal to copy the whole Fruit if you follow GPL licence agreement.

c) I don't have and never had access to fafis code, so i can't state a thing
about it. All i was asking it's to give him time. And also i got angry about the
virus accusation, i still think it's not that clear as you state it is.

d) I personally know the author so i think it's pretty understandable that i
give him the benefit of doubt. This situation it's pretty dificult to me.

e) Illegal means out of law, not all clones are out of law.

f) "Clone" it's an incorrect word used in this problems, to me "it's a clone of
X" means "it's the same than X". But i understand that in chess engines the
meaning was changed and "clone" means something like " Y took some code of X".
But what does "took some code" means? copy-paste? typing the same code? taking
the implementation idea?  pretty vague in my understanding.

g) I understand "Clone" it's about code, because ideas are almost the same on
many engines. Minimax, alfa-beta, futility prunning, delta prunning, quiescence,
static evaluators, book learning, extensions, reductions, bitboards, etc.

h) Endgame tablebases code can make many engines be in your "clone" definition.

i) Since "clone" it's about code then "ideas" seems to mean nothing. It seems to
me that everything that makes an engine it's code (witch it's not the case).




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