Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source:
 https://sjeng.org/download.html
Upstream-Contact:
 Gian-Carlo Pascutto <gcp@sjeng.org>

Files: *
Copyright: (C) 2000-2001 Gian-Carlo Pascutto
License: GPL-2+
 Sjeng is Free Software and is licensed under the GNU General
 Public License. For more details see the file COPYING that
 comes with Sjeng.
 .
 If this file is missing, write to the  Free Software Foundation,
 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 .
 Sjeng should have come with source code, or you should have
 been given the possibility to obtain it for a charge no more
 than the cost of physically performing the source distribution.
 If not, please contact gcp@sjeng.org.
 .
 Sjeng includes tablebase accessing code written by Andrew Kadatch
 and Eugene Nalimov. This code is contained in the files tbindex.cpp
 and tbdecode.h and is copyrighted by them, all rights reserved.
 This code does _not_ fall under the GPL. You are hereby given the
 additional right to compile and link Sjeng with this code, as well
 as to distribute the resulting executable and code under the
 conditions of the GPL, except for the files tbindex.cpp and
 tbdecode.h, which do not fall under the GPL, but may also be
 distributed together with Sjeng.
 .
 The author regrets having to include this non-free code with
 Sjeng, but no free replacement of the same quality is available
 yet.
Comment:
 On Debian systems, the text of the GPL version 2 is available in
 /usr/share/common-licenses/GPL-2. The files tbindex.cpp and tbdecode.h
 are not contained in the source code archive, so this package is free
 software completely covered by the GPL license.