The two-color ball is added by double-casting. Buyers can make multiple bets on the selected betting number, and the betting multiple range is 2-99 times. The maximum bet amount of a single lottery ticket shall not exceed 2, yuan.

the lottery bonus, the lottery issuance fee and the lottery public welfare fund are accrued for the two-color ball according to 51%, 13% and 36% of the current sales respectively. Lottery bonuses are divided into current bonuses and adjustment funds, of which 49% are current bonuses and 2% are adjustment funds.

other regulations for two-color ball.

the adjustment fund includes the part withdrawn according to 2% of the total sales, the overdue unpaid fare, and the balance of the floating bonus rounded by yuan. The adjustment fund is used to pay for unforeseen bonus expenditure risks and to set up special prizes.

when the single-note bonus of the first prize is lower than the single-note bonus of the second prize, the total bonus of the first prize and the second prize will be added and divided equally by the winners of the first prize and the second prize; When the single-note bonus of the second prize is less than twice that of the third prize, the adjustment fund will supplement the single-note bonus of the second prize to twice that of the third prize.