The application calculates the bridge IMP score using notation known as "Russian scoring" where combined strength of players' hands is evaluated. The Russian scoring, unlike the rubber notation, is designed to remove randomness by linking the contract with players' honor point capabilities. Three tables have been implemented in the program. The first, it is a classic one which comes from The Official Encyclopedia of Bridge, the second it is its modification made by Łukasz Iniarski (http://www.szkolabrydza.pl/index.php?a=t&id=48&id_nad=47) and the third it is also one of the variants. The calculator stores results in the Chicago table, where one game consists of 4 or 8 deals.