Of course it is, but you must realize the number of abbreviated lines you play are just that many out of the number of lines in a full wheel of that size. For example a 10 number full wheel is 210 lines while a 3if6 wheel for 10 numbers is only 2 lines so you have a 1 in 105 chance of a jackpot when all six winning numbers fall among your ten numbers on the two lines.
There are many wheels of the size you ask for that are considered classics of the purest form that cannot be improved upon. However, if you can't put all the winning numbers among 20 or less often enough to be interesting, they do nothing but waste your money.
Here is an interesting wheel from Lotto-Logix.com
1 2 3 4 5 6
1 2 3 7 8 9
1 2 3 10 11 12
1 2 3 13 14 15
1 2 3 16 17 18
1 4 7 12 14 17
1 4 8 11 15 16
1 4 9 10 13 18
1 5 7 12 15 18
1 5 8 11 13 17
1 5 9 10 14 16
1 6 7 12 13 16
1 6 8 11 14 18
1 6 9 10 15 17
2 4 7 11 13 18
2 4 8 10 14 17
2 4 9 12 15 16
2 5 7 11 14 16
2 5 8 10 15 18
2 5 9 12 13 17
2 6 7 11 15 17
2 6 8 10 13 16
2 6 9 12 14 18
3 4 7 10 15 16
3 4 8 12 13 18
3 4 9 11 14 17
3 5 7 10 13 17
3 5 8 12 14 16
3 5 9 11 15 18
3 6 7 10 14 18
3 6 8 12 15 17
3 6 9 11 13 16
4 5 6 7 8 9
4 5 6 10 11 12
4 5 6 13 14 15
4 5 6 16 17 18
7 8 9 10 11 12
7 8 9 13 14 15
7 8 9 16 17 18
10 11 12 13 14 15
10 11 12 16 17 18
13 14 15 16 17 18
end 4if6in18numbers42 lines
Simply replace my place holder pointer numbers with your best picks. However, if you want to win a jackpot instead of a 4# prize . . .
This is a 4if6in18number42combination wheel like you'd find in many lottery books or software only this one comes with a jackpot shot (one of the secrets of the wheeling experts).
The 18 numbers are divided into 6 groups of 3 numbers each.
Each group is played against every other group in the wheel.
01-02-03 | 04-05-06 | 07-08-09 | 10-11-12 | 13-14-15 | 16-17-18
If you get three winning numbers correct in any two groups it's an automatic jackpot. 3+2 is a 5# prize. 2+2+2 = multiple 4# prizes.
T if M Tested Covered % Not Covered %
----------------------------------------------------
2 If 2 : 153 153 100.00000 0 0.00000
2 If 3 : 816 816 100.00000 0 0.00000
2 If 4 : 3,060 3,060 100.00000 0 0.00000
2 If 5 : 8,568 8,568 100.00000 0 0.00000
2 If 6 : 18,564 18,564 100.00000 0 0.00000
2 If 7 : 31,824 31,824 100.00000 0 0.00000
3 If 3 : 816 780 95.58824 36 4.41176
3 If 4 : 3,060 3,060 100.00000 0 0.00000
3 If 5 : 8,568 8,568 100.00000 0 0.00000
3 If 6 : 18,564 18,564 100.00000 0 0.00000
3 If 7 : 31,824 31,824 100.00000 0 0.00000
4 If 4 : 3,060 630 20.58824 2,430 79.41176
4 If 5 : 8,568 6,786 79.20168 1,782 20.79832
4 If 6 : 18,564 18,564 100.00000 0 0.00000
4 If 7 : 31,824 31,824 100.00000 0 0.00000
5 If 5 : 8,568 252 2.94118 8,316 97.05882
5 If 6 : 18,564 3,066 16.51584 15,498 83.48416
5 If 7 : 31,824 16,110 50.62217 15,714 49.37783
6 If 7 : 31,824 504 1.58371 31,320 98.41629
BobP