Hole card meaning, in casino games: a hole card is a card dealt face down, hidden from the other side. In blackjack it is the dealer's second card, which stays hidden until the players have acted. In poker games such as Casino Hold'em, your hole cards are the private cards only you can see. Whether a blackjack dealer takes a hole card at all changes how some hands should be played.
A hole card is a face-down card: the dealer's hidden card in blackjack, or your private cards in poker.
With a hole card and a peek, the dealer checks for blackjack before you act, so you never lose doubles or splits to it.
Under European no-hole-card rules, the dealer's second card comes after you act, which changes strategy on 11 vs 10 and some splits.
Check the game's help screen to see which rule your table uses.
Blackjack meaning
Dealer's face-down second card
Poker meaning
A player's private cards
Peek rule
Dealer checks for blackjack when showing an ace or ten
No-hole-card (ENHC)
Dealer's second card dealt after players act
Where to check
Table rules in the help screen
Hole card meaning in blackjack
In the classic American deal, the dealer receives two cards: one face up (the upcard) and one face down (the hole card). The hole card stays hidden while players decide whether to hit, stand, double or split. Once every player has finished, the dealer turns it over and plays the hand by fixed rules.
The name comes from the land-based game, where the face-down card was tucked under the upcard or into a 'hole' on the table. The point of hiding it is simple: if players could see it, they would know exactly when to stand and when to hit, and the game would no longer favour the house.
Peek rules vs European no-hole-card
Blackjack tables use one of two approaches when the dealer shows an ace or a ten-value card.
Hole card rules compared
Rule
When the dealer's second card is dealt
If the dealer has blackjack
Effect on players
Hole card with peek (American style)
At the start, face down
Dealer checks immediately; the round ends before you act, so you lose only your original stake
You never lose extra money from doubles or splits to a dealer blackjack
No hole card (European, ENHC)
After all players have acted
Revealed at the end; doubled and split stakes can be lost too, unless the table refunds them
Slightly higher house edge; some strategy changes
No hole card with refund (sometimes called OBO)
After all players have acted
Only the original stake is lost
Plays like the peek rule
Many UK land-based tables have traditionally used no-hole-card rules. Online, both styles exist across RNG and live blackjack, so the only reliable answer for a given table is its help screen; our guide to reading game help screens shows where to look.
How no-hole-card rules change strategy
Without a peek, every extra pound you commit against a dealer ace or ten is at risk from a dealer blackjack you can't yet see. Standard strategy adjusts by committing less in those spots.
Hard 11 against a ten or ace: hit rather than double down.
Pair of 8s against a ten or ace: many charts hit (or surrender) rather than split.
Pair of aces against an ace: hit rather than split on some charts.
Worked example: doubling 11 into a dealer blackjack
You stake £10 and hold 6-5 (hard 11). The dealer shows a 10.
At a peek table, the dealer has already checked: no blackjack, so you double to £20 with confidence that a dealer blackjack isn't waiting.
At a no-hole-card table without refunds, you hit instead of doubling, because a dealer blackjack would take the full £20.
If the dealer then draws an ace for blackjack, you lose £10 rather than £20.
Over many hands, that adjustment trims the extra cost of the no-hole-card rule.
Hole cards in poker and Casino Hold'em
In community-card games, hole cards are your private cards. In Texas Hold'em and Casino Hold'em you get two; the five shared cards are dealt face up. In Casino Hold'em you play against the dealer, whose two hole cards are revealed at showdown. Your decision to call or fold depends on your hole cards and the first three community cards. The Wizard of Odds Casino Hold'em guide (opens in a new tab) gives the house edge and strategy.
Games such as Three Card Poker and Caribbean Stud Poker also deal the dealer's cards face down until the end, which is the same idea under a different name.
Hole cards and UK online play
In RNG games, the hole card is generated by the random number generator, and fairness is covered by the Commission's technical standards; our RNG guide explains how outcomes are produced and how casino games are tested covers checks by testing labs. Since 17 January 2025, non-slot online casino games at UK-licensed sites must allow at least 5 seconds per game cycle and can't offer autoplay; see table game speed rules. In live casino games, real cards come from a real shoe, and studios design camera angles so the hidden card stays hidden.
No strategy can make blackjack or poker a reliable source of income. Losses are the likely outcome over time, and GamCare (opens in a new tab) offers free, confidential support if gambling is causing problems.
Related card game terms
Insurance: a side bet offered when the dealer's upcard is an ace.
Natural: a two-card 21, which a dealer peek checks for.
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Frequently asked questions
What does hole card mean in blackjack?
It means the dealer's second card, dealt face down so players can't see it while they make their decisions. The dealer reveals it after all players have finished, then hits or stands according to the table rules. On tables with a peek rule, the dealer checks the hole card for blackjack straight away when showing an ace or ten-value card. Our blackjack rules page explains the full sequence, and natural explains what counts as blackjack.
What is the European no-hole-card rule?
It's a blackjack rule where the dealer takes only one card at the start and draws the second after every player has acted. If that second card makes a dealer blackjack, players can lose any extra stakes from doubles and splits as well as their original bets, unless the table refunds them. That raises the house edge a little and changes some strategy plays. Check the help screen for the exact rule. Our guides to online blackjack and low house edge games cover rule effects.
Why does the dealer peek at the hole card?
To end the round straight away if the dealer has blackjack. Under the peek rule, when the dealer shows an ace or a ten-value card, they check the hole card before players act. If it completes a blackjack, everyone without one loses only their original stake, and nobody wastes money doubling or splitting into a hand that can't be beaten. It's player-friendly compared with no-hole-card rules. The insurance definition explains the side bet offered at that moment, and blackjack side bets covers others.
What are hole cards in poker?
They're the private cards dealt face down to each player. In Texas Hold'em and Casino Hold'em you get two hole cards and combine them with five shared community cards to make your best five-card hand. In Casino Hold'em the dealer also has two hole cards, revealed at the end. Only you see your hole cards during play. Our Casino Hold'em page explains the rules, and live casino poker covers the live versions.
Can you see the dealer's hole card online?
No. In RNG games the hole card is generated and stored by the game and shown only when the rules say it should be, and in live games the studio keeps it out of camera view. Claims that software or tricks can reveal it are a scam warning sign. Games at UK-licensed casinos are tested for fairness. If you're unsure whether a game is fair, read how do I know if a slot is fair? and our casino scams guide.
Does the hole card rule change the house edge?
Yes, slightly. A table where the dealer peeks for blackjack is a little better for players than a no-hole-card table where doubled and split stakes can be lost to a dealer blackjack. The difference is small, but over many hands it adds to your expected cost. Other rules, such as whether the dealer hits soft 17 and how blackjack pays, matter too. Our answer on the house edge on blackjack and the house edge definition explain how small rule changes add up.
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