Wepresent an application designated to the calculation of probabilities in the card gamebridge. Theapplication can be used by bridge players to improvetheir decisions in the game.Wedescribe in detail howa Bayesiannetwork is dynamically generated dependingon the case presented to the application. Wealso present a communication languagewhichmakesthe specification of all kinds of relevant evidence simple. The communication languagealso makesit easy to specify requests for probabilities of complexproperties of the distribution of cards. Weexplain howthe probability of a strategy for declarer's play being successful is calculated by transforming the corresponding condition to disjunctive normalfrom. Finally, we give examplesshowingthe use of PROBSY.
Anders L. Madsen, Lars M. Nielsen, Finn Verner Jen