| 摘要 |
PROBLEM TO BE SOLVED: To make it easy to find out a game machine having a doubt that a fraudulent action is committed without making a player normally playing a game feel uncomfortable and disturbing the game or to prevent the fraudulence. SOLUTION: In a game machine having a game board provided with a game region to which a game ball is shot, a detection part 501 continuously detects curvature variations with time in at least either a board surface of the game board or a support member for supporting the game board, and a time calculating part 502 calculates a time range from the beginning to the end of a series of curvature variations based on the detection result. Then it is determined whether or not the time range is prescribed time or more based on the result of the time calculated by the time calculating part 502, and an output part 505 outputs the determination result. COPYRIGHT: (C)2009,JPO&INPIT
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