OpenPref is an open source implementation of European trick-taking game
Preferans (or Preference). It is written using cross-platform Qt4 framework
and is portable between may operating systems including Windows and major
Unix flavours. Some information about game's rules and strategy can be
easily found in Wikipedia.
There is an issue with OpenPref: when you exit game clicking on Close button
in the main window, it can remain in memory. To prevent it, exit the game
via menu Game->Quit (Ctrl-Q) or clicking on Close button in bidding window.
To run OpenPref you need QtCore and QtGui libraries (Windows package includes
them). To compile OpenPref from source code you need also Qt4 headers and
development tools: qmake, moc, uic, lrelease.
Please, submit all bugs and desired features to project's website
http://sourceforge.net/projects/openpref, section Development->Tracker
Contact e-mail: annulen at users.sourceforge.net