Derek ... I have a system that works on Keno ... that is 1-70 ... I have won over $25,000 on it since 2004. It's the easiest system and will only cost you $20...based on 7 #'s/$2 wagers on each.
It doesn't involve a wheel or moving numbers around, it doesn't even entail looking at what's hot or what's not. Simple get a blank selection slip and void the first box. You will keep track of everything you do on that voided play box.
First choose 7 #'s. One from each field roughly...e.g 1, 15, 27, 38, 46, 55, 68
Now write those in the voided box (so you don't play them again).
Now for your second ticket, pick 7 different numbers, again once per 2, 11, 23, 36, 47, 51, 66
Also mark those in voided play area. At the end of doing all this you will have played every number once, you will have 10 tickets.
This is the beautiful part. It your first page of ticket(s) has only 5 numbers. That means your last two pages (6 tickets) have the other 15 numbers on them. The trick is to have one page with no numbers on it, meaning that all 20 numbers would be on youir next 6 tickets (since you have played every number once).
I won $10,000, a few $2,000, several $500 wins. You can also do your tickets this way as a 6 spots, however you will have 4#'s left over at the end.
Hope this helps....
Derek AKA WINTARIOFAN