I assumed that anyone playing the 7,8,9 ball game would only do so to try and have more chance of hitting jackpot.
They do, but you charge 30x as much for someone to have a 7x chance of winning it. The numbers don't really make any sense
Removed the 7,8,9 ball options and come up with a better price/prize.
It was not meant for or expected any seasoned gamblers to try and play. It was a little fun since people kept asking for a lotto in chat.
I'll change it tonight.
First draw had one winner though
I checked the math, and it seems fine. Here are my numbers, along with the price per ticket you need to charge to have a 1% edge:
pick 6 at 0.001000 per bet; chances of hitting 3: 1.765040% 4: 0.096862% 5: 0.001845% 6: 0.000007% payout: 0.4078 edge 59.216%
pick 6 at 0.000412 per bet; chances of hitting 3: 1.765040% 4: 0.096862% 5: 0.001845% 6: 0.000007% payout: 0.9899 edge 1.009%
pick 6 at 0.000411 per bet; chances of hitting 3: 1.765040% 4: 0.096862% 5: 0.001845% 6: 0.000007% payout: 0.9923 edge 0.768%
pick 7 at 0.030000 per bet; chances of hitting 3: 2.873322% 4: 0.215499% 5: 0.006307% 6: 0.000050% payout: 0.0283 edge 97.168%
pick 7 at 0.000859 per bet; chances of hitting 3: 2.873322% 4: 0.215499% 5: 0.006307% 6: 0.000050% payout: 0.9889 edge 1.108%
pick 7 at 0.000858 per bet; chances of hitting 3: 2.873322% 4: 0.215499% 5: 0.006307% 6: 0.000050% payout: 0.9901 edge 0.993%
pick 8 at 0.100000 per bet; chances of hitting 3: 4.268935% 4: 0.410475% 5: 0.016419% 6: 0.000200% payout: 0.0160 edge 98.404%
pick 8 at 0.001613 per bet; chances of hitting 3: 4.268935% 4: 0.410475% 5: 0.016419% 6: 0.000200% payout: 0.9896 edge 1.039%
pick 8 at 0.001612 per bet; chances of hitting 3: 4.268935% 4: 0.410475% 5: 0.016419% 6: 0.000200% payout: 0.9902 edge 0.977%
pick 9 at 0.300000 per bet; chances of hitting 3: 5.934861% 4: 0.702812% 5: 0.036042% 6: 0.000601% payout: 0.0093 edge 99.073%
pick 9 at 0.002809 per bet; chances of hitting 3: 5.934861% 4: 0.702812% 5: 0.036042% 6: 0.000601% payout: 0.9897 edge 1.032%
pick 9 at 0.002808 per bet; chances of hitting 3: 5.934861% 4: 0.702812% 5: 0.036042% 6: 0.000601% payout: 0.9900 edge 0.997%
It's good of you to remove the 97%, 98%, and 99% house edge games, but you're still running the 59% edge 6-pick game. 59% is really excessive for a house edge. Players would be better of playing the state lottery.
Also, what do you do if multiple people match 6 numbers? If you share the 10 BTC prize between them then the house edge is even higher than 59%.
Edit: also note that if you are sharing the 10 BTC jackpot between winning players then the game isn't provably fair either. The house knows which numbers will win and can play them to reduce the amount it has to pay out to real winners.