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Rules, odds and safety, in plain words.

Every game has a price. We show you what it is.

Rules, odds and safety for cards, casino games, cricket and racing bets, in plain words. Educational only, with no links to betting sites.

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    We explain games; we never send you to place a bet.

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    House edges, odds and laws are checked and dated.

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GamesCards, casino tables, dice, lottery and games from around the world.BettingHow bets work, how odds are set and what each bet type costs.Platforms and placesHow online platforms work and what to know before visiting a casino.Odds and strategyProbability, house edge and the strategy that holds up.Safety and lawStaying in control, getting help and the law by country.LearnThe glossary, beginner guides and how we work.LotteryLatest results and plain explanations for lotteries around the world. Each lottery has its own page with the newest draw, the odds worked out from the numbers, and guides on how the game works. We publish results and explain the maths. We do not sell tickets, and you must be of legal age to play wherever you live.

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New in the glossary

Jurisdiction
The area, such as a country or state, whose laws apply to a person or business. Gambling rules, age limits and taxes differ by jurisdiction.
Joint favorite
Two or more selections that share the shortest odds in a market, so none is clearly the favorite. Often shortened to joint fav.
Juice
The commission built into betting odds, also called vig or vigorish. It is the bookmaker's cut and is why both sides of a bet usually pay less than fair odds.
Jacks or Better
A video poker game where a pair of jacks is the lowest hand that pays. Its return depends on the paytable and on playing each hand correctly.
Jackpot
The top prize in a game, lottery or slot machine. A progressive jackpot grows with each bet until someone wins it, then resets.
Insurance
In blackjack, an optional side bet offered when the dealer shows an ace. It pays 2 to 1 if the dealer has blackjack, and it usually has a worse edge.

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