Guides
One question per guide, answered with odds computed by code. New guides are added regularly.
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Every lottery compared
Jackpot odds and the odds of any prize, side by side.
Do more tickets help?
Straight-line odds, decades of weekly play, syndicates and bolões.
Lottery myths
Hot numbers, overdue numbers, patterns, and the one choice that does matter.
Is a ticket worth it?
Expected value with taxes and a shared jackpot.
Odds calculator
Any lottery, any format, any number of tickets.
Mega-Sena, 6 to 20 numbers
The odds of every bet size, exactly.
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