| 摘要 |
PROBLEM TO BE SOLVED: To realize a game property which permits the acquisition of a large quantity of game mediums without depending on a big bonus (BB) alone, and prevent a player from suffering a loss due to a wrong bet number. SOLUTION: In the slot machine 1, an internal lottery table varies the probability of an internal lottery at least in a specific game status in accordance with the number of tokens bet to ensure that the optimum number of medals bet most advantageous to a player is not uniquely specified on the basis of the game status. A control section 10 judges the optimum number of tokens bet at least in the specific game status for every game on a probability basis and supports the number of tokens cast in becoming the optimum number of tokens bet. COPYRIGHT: (C)2007,JPO&INPIT
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