Why not play 20 Numbers like this:
01-02-03-04-05-06-07-08-09-10
11-12-13-14-15-16-17-18-19-20
6 numbers under 20 would win
or
30-31-32-33-34-35-36-37-38-39
40-41-42-43-44-45-46-47-48-49
6 numbers between 30-49 would win
or
15-16-17-18-19-20-21-22-23-24
25-26-27-28-29-30-31-32-33-34
numbers between 15-34 would win
Lets see how good these do for the next draw?