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Subject: Re: Leen Ammeraal's 'Queen' in direct violation of GPL license

Author: José de Jesús García Ruvalcaba

Date: 09:22:01 05/03/00

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On May 02, 2000 at 17:28:02, Gian-Carlo Pascutto wrote:

>Hi all,
>
>while toying around with 'Queen' I took a closer look at the about window:
>
><quote>
>This program uses part of the opening book of GNU Chess 3.1 by
>D.K.Baker, 1990
></quote>
>
>This is the header of the relevant file from the GNU Chess 3.1 distribution:
>
>! Opening Library for CHESS
>!
>! Copyright (C) 1986, 1987, 1988 Free Software Foundation, Inc.
>! Copyright (c) 1987 by Stuart Cracraft and John Stanback
>!
>! This file is part of CHESS.
>!
>! CHESS is distributed in the hope that it will be useful,
>! but WITHOUT ANY WARRANTY.  No author or distributor
>! accepts responsibility to anyone for the consequences of using it
>! or for whether it serves any particular purpose or works at all,
>! unless he says so in writing.  Refer to the CHESS General Public
>! License for full details.
>!
>! Everyone is granted permission to copy, modify and redistribute
>! CHESS, but only under the conditions described in the
>! CHESS General Public License.   A copy of this license is
>! supposed to have been given to you along with CHESS so you
>! can know your rights and responsibilities.  It should be in a
>! file named COPYING.  Among other things, the copyright notice
>! and this notice must be preserved on all copies.
>
>The CHESS General Public license is functionally identical to the
>GPL license. (Actually I think they are the same but the GPL name
>probably didn't exist in 1987 yet)
>
>As the opening book contains the notice, and is included in the
>queen.exe file, it most definetely classifies as a derived work.
>
>Therefore 'Queen' is in direct violation of several parts of this
>license, most notably lack of source code, failure to preserve the
>notice and failure to provide the 'copying' file.
>
>Either Leen must stop distributing Queen immediately, publish its
>sources, or seperate the book from the main executable.
>
>Considering the potential interest in the sources and the educational
>value of them, I hope Leen chooses the second option.
>
>--
>GCP

	Perhaps you should e-mail Leen (have not you?)
José.



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