| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot machine which is kept from exceeding the upper limit of the rate of put-out balls while setting the rate of winning the BB games higher to a certain extent. SOLUTION: The CPU 31 calculates the rate of put-out balls (S93) to determine the number of RT games from the rate of put-out balls (S94). Regarding the number of RT games, it is prescribed that the rate of put-out balls in the future as expected when the BB game is won in the subsequent game after the end of the RT game should not exceed the predetermined reference rate of put-out balls. The CPU 31 judges whether the counts of games are zero or not (S95) and when the number of RT games is not zero, the ongoing RT game flag is set (S96), thereby delaying the start of the BB game. COPYRIGHT: (C)2005,JPO&NCIPI
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