Program for playing card game 'preference' (pronounced preferAns), which is very popular in Russia and Eastern Europe. This contract card game is easier than bridge but requires skill, memory and luck. You can play against a computer AI as well as against other people using TCP/IP. Sochi and Leningrad variations + many parameters of the game available.
This software is a shareware. You will be able to download and test Danzig Pref Engine during a certain period of time, then, if it does what you need, you will have to acquire the full version from Danzig Pref Engine publisher. The Danzig Pref Engine 1.5 free trial version contains an installer and an uninstaller, and has a size of 491 Kilobytes.
For additional information and support request, please contact directly Danzig Pref Engine publisher.

Danzig Pref Engine Screenshot