FIELD: playing machines equipped with mechanical counters. SUBSTANCE: according to game rules, mechanical counter of machine is connected to electronic payment mechanism using electronic chart. Machine depends for its operation on deflection of definite number of its unit sections by means of electronic payment mechanism for staking or paying through electronic chart without accepting or giving counters best without changing readings of total input and output data counters. Subtracting device changes content of the latter; desired balance in feeder coin box is attained by changing formula used for calculating this balance. EFFECT: provision for eliminating cheating and for staking both by means of counters and electronic charts. 7 cl, 4 dwg
