| 摘要 |
PROBLEM TO BE SOLVED: To determine whether or not a fraudulent act is committed without monitoring winning in all winning devices provided in a game area. SOLUTION: The game machine specifies an area where a pachinko ball to be shot flows down from the volume value of a shooting volume provided in the interior of an operating handle. The game machine counts the number of winning in an ordinary chucker provided in the specified area from among ordinary chuckers and computes the total number N of shot pachinko balls per reference time T1 and a winning rate P when the reference time T1 elapses. The game machine determines whether or not the computed winning rate P exceeds a reference winning rate by referring to the reference winning rate related to the volume value of the shooting volume. When the determination indicates that the winning rate P exceeds the reference winning rate, a shooting control device outputs an error signal to a lamp control device and a sound control device. COPYRIGHT: (C)2008,JPO&INPIT
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