This is the Debian GNU/Linux prepackaged version of GNU Chess.

GNU Chess was first Debianized by Nikhil Nair <nnair@debian.org>.

Currently the Debian package is maintained by
Lukas Geyer <lukas@debian.org>

Upstream location is ftp://ftp.gnu.org/pub/gnu/chess

Authors of GNU Chess: Chua Kong Sian, Stuart Cracraft,
  Lukas Geyer, Simon Waters, David A. Wheeler

Gnuchess is Copyright (c) 1985-1996 Stuart Cracraft, John Stanback,
				    Daryl Baker, Conor McCarthy,
				    Mike McGann, Chua Kong Sian
	    Copyright (c) 1985-1996 Free Software Foundation, Inc.
	    Copyright (c) 1999-2002 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 dated June, 1991.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program;  if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.

On Debian GNU/Linux systems, the complete text of the GNU General
Public License can be found in `/usr/share/common-licenses/GPL'.
