System - 12 numbers, 16 bets 

We select 12 numbers from 70 and 4 numbers from 25 additional numbers. The selected numbers from 1 to 70 are substituted in place of the numbers in the system from 1 to 12, while the selected additional 4 numbers from 1 to 25 are substituted in place of the numbers in the system from 1 to 4
Guarantee 2 if you hit 3 numbers from selected 12 (guarantee applies to selected numbers from 1 to 70 and substituted in place of numbers in the system from 1 to 12)

5 z 12 1 z 4
1 3 7 9 10 1
1 3 7 9 12 3
1 3 7 10 12 4
1 3 9 10 12 2
1 4 5 8 9 4
1 4 5 8 12 1
1 4 5 9 12 2
1 4 8 9 12 3
2 4 5 6 8 1
2 4 5 6 11 2
2 4 5 8 11 3
2 4 6 8 11 4
2 3 6 7 10 4
2 3 6 7 11 1
2 3 6 10 11 3
2 3 7 10 11 2

Numbers from 1 to 12 should be substituted for selected own 12 numbers from range 1 to 70 and numbers from 1 to 4 should be substituted for selected own 4 numbers from range 1 to 25