An educational board-type game for a plurality of players has world currency as the primary subject matter. The predictor employs a prediction model that associates an inspection result value of a first inspection with a predicted value being a value relating to a possibility of pass or failure in a second inspection and calculates the predicted value from an inspection result value that is obtained for an inspection target in the first inspection. Upon finishing, an internal timer of the transponder is activated and its transponder time is evaluated with the determination of a finish time from the recorded time as the adjustment amount. The housing includes two or more housing supports having bottom and top surface portions respectively, conforming in shape to the housing bottom top walls.