Pick a strategy and hit generate.
Run a backtest to see how a strategy would have done.
A draw takes 20 of the 80 numbers. Play k numbers and the count you match follows a fixed distribution, so the only choice that changes your odds is how many numbers you play.
What each result pays. Anything above zero counts as a win.
These are example amounts, not Vietlott's prize table. The draw data does not carry the prize rules, so the app ships a conventionally shaped placeholder to compute with. Every return and house-edge figure below is only as real as the numbers you put here.
Generate a ticket to score it against the recent Keno history.