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Hold
Cards · Classics · plays in your browser, no download
Get closer to twenty-one than the dealer without going past it. It is the one casino game where the right play is a matter of arithmetic rather than opinion — which is exactly why the house rules keep being adjusted.
Where it comes from
The ancestor is vingt-et-un, French, eighteenth century, and the idea is older still — getting as close as possible to a target without going over is the skeleton of several European gambling games.
The name is American and comes from a bonus that no longer exists. To get the game going, some houses paid extra for a hand made of the ace of spades and a black jack. The bonus went; the name stuck.
The interesting part is 1962, when a mathematician called Edward O. Thorp published Beat the Dealer. Using a computer to work through the probabilities, he showed something the casinos did not believe: because the cards are dealt from a shoe and not replaced, the odds shift as the deck is used up, and a player who keeps track of what has gone can find moments when the game favours him rather than the house. It was the first time anyone proved a casino game beatable in print.
What followed is a good lesson in how gambling works. The casinos did not remove the game — it got more popular, because everybody now thought they could win. They changed the furniture instead: more decks in the shoe, more frequent shuffling, and, later, paying 6 to 5 on a natural instead of 3 to 2, which quietly removes most of the player’s edge in a single line of the rules.
How to play
| Card values | Face cards 10, ace 1 or 11 — whichever helps. |
|---|---|
| Hit / stand | Take another card, or stop. |
| Bust | Over twenty-one and you lose at once, even if the dealer busts afterwards. |
| Double | Double your bet and take exactly one more card. |
| Split | Two of the same rank can be played as two hands. |
| The dealer | Has no choices: draws to 16, stands on 17. |
That last line is where the house edge lives. You can bust before the dealer ever plays, and when you do, he wins without doing anything.
The basic strategy, in three lines
Every hand has one mathematically best play, and it has been fully worked out. Three rules get you most of the way:
- Never take a card on hard 17 or more. The chance of improving is much smaller than the chance of busting.
- Stand on 12 to 16 when the dealer shows 2 to 6. He is the one likely to bust; let him.
- Always split aces and eights, never split tens or fives. Two eights is sixteen, the worst hand in the game; twenty is already excellent.
Three things that help
The dealer’s up card is half the decision. The same fifteen is a hit against a ten and a stand against a six. Playing your own hand in isolation is the most expensive habit at the table.
Do not take insurance. It is a side bet with a worse return than the game itself, and it is offered precisely when you feel you need it.
House rules are the game. Number of decks, whether the dealer draws on soft 17, what a natural pays — those lines move the edge further than any decision you will make.