This is the tenace package, a bridge hand viewer and editor written and maintained by Christoph Berg . Upstream website: http://www.df7cb.de/bridge/tenace/ License and copyright: /* * tenace - bridge hand viewer and editor * Copyright (C) 2005-2009 Christoph Berg * * 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; either version 2 of the License, or * (at your option) any later version. * * 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. */ On Debian systems, the complete text of the GNU General Public License can be found in the file /usr/share/common-licenses/GPL. The shipped bonded.svg file has been copied from gnome-cards-data and has been around for at least 10 years, author unknown. It is also GPL-licensed. The dds/ directory contains a copy of the double dummy solver library: (Not used for Debian builds.) /* DDS 1.1.9 A bridge double dummy solver. */ /* Copyright (C) 2006-2008 by Bo Haglund */ /* Cleanups and porting to Linux and MacOSX (C) 2006 by Alex Martelli */ /* */ /* 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; either version 2 */ /* of the License, or (at your option) any later version. */