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Subject: Re: Open letter by Eugenio Castillo (ELChinito team) ...

Author: Gerd Isenberg

Date: 08:44:30 08/28/04

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On August 28, 2004 at 10:23:53, Frank Quisinsky wrote:

>Hi there,
>Eugenio sent us the following open letter.
>The letter is public on Arena webpages (News-Ticker).
>Eugenio wrote:
>"I've used crafty source to implement my own program ElChinito.
>My public and sincere apologize to Bob Hyatt not to mention that in ElChinito's
>readme file and copyright notes and did not ask consequently for permission. I
>will ensure that ElChinito is not longer public available for download and plays
>any public tournaments.
>I've inform ICGA and French Computer Chess Association about this issue to
>accept their decision, and discalificate Chinito from the played events.
>My apologize to Frank Q. for the damages caused.
>My apologize to any one of the tester and downloaders of Arena.
>Eugenio Castillo."

My respect to Eugenio Castillo for his late apology.
It seems that he had a hard time and a long fight to decide so.

It was a severe offence of Eugenio, i understand that routines like NextMove
have another quality than some cray like bitscan routines or moveInput.

Eugenio obviously used Crafty framework as a toolbox for the bitboard
infrastructure and parts of move generation and even minor parts of eval. He
was, probably due his naivety, not fully aware of the cloning issue or did
repress it in some way, after receiving no answer from Bob after some tries.
Didn't Dann Corbit mention Eugenio mailed Bob about that issue, but Bob didn't
receive for what reasons ever?

It is difficult to quantify for me, but it seems that most of ElChinitos
strength was not based on Crafty but on Eugenio's own search and most parts of
it's evaluation.

So i respect his decision to don't make ElChinito open source and i suggest to
give ElChinito a second chance after some time, until Eugenio assures that no
more parts of crafty are inside - IMHO.


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