| 摘要 |
PROBLEM TO BE SOLVED: To enrich variety by making a decision through a lottery by providing a low-probability table and a high-probability table at a probability table and providing a probability table lottery means for deciding the probability table to be used for the next general game by lottery after the end of special play. SOLUTION: Concerning a probability table lottery means 70 for deciding a probability table 60 to be used for the next general game by lottery after the end of special play, when the probability table 60 used for the last general game is a high-probability table 62, this means 70 performs the lottery for deciding whether or not the high-probability table 62 is to be changed into the low-probability table 61. Namely, it is decided as a result of the lottery whether the high-probability table 62 is to be kept or to be changed into the low-probability table 61. Besides, when the probability table 60 used for the last general game is the low-probability table 61, the lottery is performed for deciding whether or not the low-probability table 61 is to be changed into the high-probability table 62. Namely, it is decided as a result of the lottery whether the low-probability table 61 is to be kept or to be changed into the high- probability table 62. |
