(1) red ball compound

N is the number of red balls (N>6)

Multi-note =N! /(N-6)！ *6!

(2) Blue ball compound

K is the number of blue balls.

Number of compound notes =K

(3) Full duplex

Multi-note =[N! /(N-6)！ *6! ]*K

So 33+ 16 full duplex * * 1772 1088 note.

Other regulations of two-color ball.

The lottery center will draw the lottery uniformly, and draw the lottery every Tuesday, Thursday and Sunday. When the two-color ball draws a prize in each issue, after the sales data is sealed, the lottery number is determined by the lottery machine under the supervision of the notary. In the lucky draw, first shake out 6 red ball numbers, and then shake out 1 blue ball numbers.

After each lottery, the lottery center and the provincial lottery institutions shall announce the lottery number, the total sales amount of the current period, the winning situation of each prize level and the fund balance of the prize pool to the public, and notify the sales outlets of the lottery results.