| 摘要 |
PROBLEM TO BE SOLVED: To provide a game board of a Pachinko game machine capable of more reliably preventing a fraudulent act.SOLUTION: A ball passage member 180, where a ball passage 184 in the rear for distribution for allowing a game ball B2 passing through a distribution major winning hole of a big winning device to flow down, is formed separately from the big winning device. The ball passage 184 in the rear for distribution is formed so as to allow a game ball flowing down the ball passage 184 in the rear for distribution to selectively pass either a specific passage port 185 or an exhausting port 186. A ball probability sensor 185s for detecting a game ball passing through the specific passage port 185 is provided in the ball passage member 180. |
