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Rules
In its simplest sense, blackjack rules are a set of explicit or implied regulations that oversee how this casino game is played. From the way you and the dealer should interact, to when and how your chips are placed and the many variants to the rules of blackjack, there’s plenty to take in.
I overhear a lot of bad gambling advice in the casinos. Perhaps the most frequent is this one, 'The object of blackjack is to get as close to 21 as possible, without going over.' No! The object of blackjack is to beat the dealer. To beat the dealer the player must first not bust (go over 21) and second either outscore the dealer or have the dealer bust. Here are the full rules of the game.
- Blackjack may be played with one to eight decks of 52-card decks.
- Aces may be counted as 1 or 11 points, 2 to 9 according to pip value, and tens and face cards count as ten points.
- The value of a hand is the sum of the point values of the individual cards. Except, a 'blackjack' is the highest hand, consisting of an ace and any 10-point card, and it outranks all other 21-point hands.
- After the players have bet, the dealer will give two cards to each player and two cards to himself. One of the dealer cards is dealt face up. The facedown card is called the 'hole card.'
- If the dealer has an ace showing, he will offer a side bet called 'insurance.' This side wager pays 2 to 1 if the dealer's hole card is any 10-point card. Insurance wagers are optional and may not exceed half the original wager.
- If the dealer has a ten or an ace showing (after offering insurance with an ace showing), then he will peek at his facedown card to see if he has a blackjack. If he does, then he will turn it over immediately.
- If the dealer does have a blackjack, then all wagers (except insurance) will lose, unless the player also has a blackjack, which will result in a push. The dealer will resolve insurance wagers at this time.
- Play begins with the player to the dealer's left. The following are the choices available to the player:
- Stand: Player stands pat with his cards.
- Hit: Player draws another card (and more if he wishes). If this card causes the player's total points to exceed 21 (known as 'breaking' or 'busting') then he loses.
- Double: Player doubles his bet and gets one, and only one, more card.
- Split: If the player has a pair, or any two 10-point cards, then he may double his bet and separate his cards into two individual hands. The dealer will automatically give each card a second card. Then, the player may hit, stand, or double normally. However, when splitting aces, each ace gets only one card. Sometimes doubling after splitting is not allowed. If the player gets a ten and ace after splitting, then it counts as 21 points, not a blackjack. Usually the player may keep re-splitting up to a total of four hands. Sometimes re-splitting aces is not allowed.
- Surrender: The player forfeits half his wager, keeping the other half, and does not play out his hand. This option is only available on the initial two cards, and depending on casino rules, sometimes it is not allowed at all.
- After each player has had his turn, the dealer will turn over his hole card. If the dealer has 16 or less, then he will draw another card. A special situation is when the dealer has an ace and any number of cards totaling six points (known as a 'soft 17'). At some tables, the dealer will also hit a soft 17.
- If the dealer goes over 21 points, then any player who didn't already bust will win.
- If the dealer does not bust, then the higher point total between the player and dealer will win.
- Winning wagers pay even money, except a winning player blackjack usually pays 3 to 2. Some casinos have been short-paying blackjacks, which is a rule strongly in the casino's favor.
Wizard's Simple Strategy
I've been preaching for years that to play blackjack properly requires memorizing the basic strategy. However, after pitching the basic strategy for 20 years, I've learned that few people have the will to memorize it. In my book, Gambling 102, I presented a 'Simple Strategy,' which is seven simple rules to playing blackjack. The cost due to incorrect plays with the Simple Strategy is 0.53%, under liberal Vegas Strip rules.
Ever since my book was published it has bothered me that the cost in errors to my Simple Strategy was too high. So in September 2009 I developed the following 'Wizard's Strategy.' The cost due to imperfect plays is 0.14% only, relative to liberal Vegas Strip rules. That is the cost of one hand for about every 12 hours of play. Compared to the 250 cells in the Basic Strategy, the Wizard's Strategy has only 21, as follows.
Let me be perfectly clear that this strategy is not right 100% of the time. I continue to get Emails saying that when this strategy was used with my practice game, the player was corrected for following it. For example, my simple strategy says to stand on 12 against a 2, when it is mathematically better to hit. If you want to learn a strategy that is correct all the time you should use the appropriate basic strategy for the set of rules you are playing.
Here are some comments of clarification.
- A 'hard' hand is one that either has no aces, or has aces that are forced to count as point, lest the hand bust. A 'soft' hand is one with at least one ace, which may still count as one or eleven points.
- With a hard 10 or 11, double if you have more points than the dealer, treating a dealer ace as 11 points. Specifically, double with 10 against a 2 to 9, and with 11 against 2 to 10.
- If the strategy says to double, but you have three or more cards, or table rules don't allow soft doubling, then hit, except stand with a soft 18.
- If the strategy says to surrender (16 vs. 10), but you can't for whatever reason, then hit.
- If the strategy says to 'not split,' then treat the hand has a hard total of 8, 10, or 20, according to the pair in question.
A reader named Jeff provided another table of my simple strategy, with exceptions in small print. Details about the Wizard's Simple Strategy can be found in my Blackjack appendix 21.
Basic Strategy
For the appropriate basic strategy for just about any set of rules, please visit my basic strategy calculator. I still have my traditional charts too:House Edge
Play my custom-made blackjack game. A special feature is that it tells you when you make a mistake in basic strategy. Choose from various numbers of decks and rule variations.
See my Blackjack House Edge Calculator to determine the house edge under 6,912 possible rule combinations.
Rule Surveys
Las Vegas: I'm proud to feature up date blackjack rules for every casino in Las Vegas. The list is updated monthly, based on Stanford Wong's Current Blackjack Newsletter. Effective November 2009 the survey has been moved to my companion site, WizardOfVegas.com.Rule Variations
Following is a list of some common rule variations and the effect on the player's expected return compared to standard U.S. rules (8 decks, dealer stands on soft 17, double after split allowed).
Rule Variations
Rule | Effect |
---|---|
Single deck | 0.48% |
Early surrender against ten | 0.24% |
Player may double on any number of cards | 0.23% |
Double deck | 0.19% |
Player may draw to split aces | 0.19% |
Six-card Charlie | 0.16% |
Player may resplit aces | 0.08% |
Late surrender | 0.08% |
Four decks | 0.06% |
Five decks | 0.03% |
Six decks | 0.02% |
Split to only 3 hands | -0.01% |
Player may double on 9-11 only | -0.09% |
Split to only 2 hands | -0.10% |
European no hole card | -0.11% |
Player may not double after splitting | -0.14% |
Player may double on 10,11 only | -0.18% |
Dealer hits on soft 17 | -0.22% |
Blackjack pays 7-5 | -0.45% |
Blackjack pays 6-5 | -1.39% |
Blackjacks pay 1 to 1 | -2.27% |
Beware Short Pays on a Blackjack
More and more tables are showing up that pay less than the full 3 to 2 on a blackjack. Most of these tables pay 6 to 5, but some even money and 7 to 5 tables are known to exist. I would estimate that 10% of '21' tables in Las Vegas now pay less than 3 to 2. In my opinion, only games that pay 3 to 2 deserve to be called 'blackjack,' the rest fall under '21' games, including Super Fun 21 and Spanish 21. Regardless of the other rules, you should demand nothing less than 3 to 2 blackjack. You should always check the felt to be sure, and if the felt doesn't say, look for a sign. If nothing says the win on a blackjack, then ask.
Articles about 6-5 Blackjack:- Taking a hit: New blackjack odds further tilt advantage toward the house, Las Vegas Sun, Nov. 13, 2003.
- Tighter blackjack rules would hurt players' bankroll, Pittsburgh Tribune-Review, Feb. 4, 2011.
Bad Strategies
Three popular bad strategies encountered at the blackjack table are: never bust, mimic the dealer, and always assume the dealer has a ten in the hole. All three are very bad strategies. Following are my specific comments on each of them, including the house edge under Atlantic City rules (dealer stands on soft 17, split up to 4 hands, double after split, double any two cards) of 0.43%.
Never bust: For my analysis of this strategy I assumed the player would never hit a hard 12 or more. All other decisions were according to correct basic strategy. This 'never bust' strategy results in a house edge of 3.91%.
Mimic the dealer: For my analysis of this strategy I assumed the player would always hit 16 or less and stand on17 or more, including a soft 17. The player never doubled or split, since the dealer is not allowed to do so. This 'mimic the dealer' strategy results in a house edge of 5.48%.
Assume a ten in the hole: For this strategy I first figured out the optimal basic strategy under this assumption. If the dealer had an ace up, then I reverted to proper basic strategy, because the dealer would have peeked for blackjack, making a 10 impossible. This 'assume a ten' strategy results in a house edge of 10.03%.
Play Blackjack
Practice your blackjack game using my two training tools.
Practice Basis Strategy | Practice Card Counting |
Written by: Michael Shackleford
The Rules Of Blackjack
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Millions of players have heard the message that of all the casino table games, blackjack is the one that it is possible to beat. A practical system for counting cards in blackjack to gain an edge over the casino was made available to the public in the early 1960s. As it happened, few players ever really learned to beat the dealer. Furthermore, playing conditions have changed since then. Some tables use more than one deck at a time or cut a percentage of the cards out of play so that a card counter never sees them.
Even though most players don't have the skill to win consistently, the belief that blackjack can be beaten was enough to spark a boom in the game. Blackjack is by far the most popular casino table game in the United States, with more players than craps, roulette, and baccarat combined.
A lot of people don't have either the patience, persistence, and concentration necessary for card counting or the bankroll to make it effective. But they can still narrow the house advantage to less than 1 percent in blackjack. The secret is to learn basic strategy for hitting, standing, doubling down, and splitting pairs. A little time spent learning to play well can make your money go a lot farther in the casino. In this article, you will learn the fundamentals of blackjack, as well as some strategies to increase your odds of winning. Let's get started by learning how to play the game:
Rules
Blackjack is played with one or more standard 52-card decks, with each denomination assigned a point value. The cards 2 through 10 are worth their face value. Kings, queens, and jacks are each worth 10, and aces may be used as either 1 or 11. The object for the player is to draw cards totaling closer to 21, without going over, than the dealer's cards.
The best total of all is a two-card 21, or a blackjack. Blackjack pays 3-2--that is, a two-card 21 on a $5 bet will win $7.50 instead of the usual $5 even-money payoff on other winning hands. However, if the dealer also has a two-card 21, the hand pushes, or ties, and you just get your original bet back. But if the dealer goes on to draw 21 in three or more cards, your blackjack is still a winner with its 3-2 payoff.
The game is usually played at an arc-shaped table with places for up to seven players on the outside and for the dealer on the inside. At one corner of the table is a rectangular placard that tells the minimum and maximum bets at that table, as well as giving variations in common rules. For example, the sign might say, 'BLACKJACK. $5 to $2,000. Split any pair three times. Double on any two cards.' That means the minimum bet at this table is $5 and the maximum is $2,000. Pairs may be split according to the rules described below, and if more matching cards are dealt, the pairs may be split up to three times for a total of four hands. The player may double the original bet (double down) and receive just one more card on any two-card total.
Most games today use four, six, or eight decks. After being shuffled, the cards are placed in a receptacle called a shoe, from which the dealer can slide out one card at a time. Single- or double-deck games, most common in Nevada, but also popular in Mississippi and some other markets, may be dealt from the dealer's hand.
Play begins when you place a bet by stacking a chip or chips in the betting square on the table directly in front of you. After all bets have been placed, each player and the dealer are given two cards. In a shoe game, all player cards are dealt faceup, and the players are not permitted to touch their cards. In a single- or double-deck game dealt from the hand, cards are dealt facedown and players may pick them up with one hand. Either way, one of the dealer's cards is turned faceup so the players can see it.
Once the cards have been dealt, players decide in turn how to play out their hands. After all players have finished, the dealer plays according to set rules: The dealer must draw more cards to any total of 16 or less and must stand on any total of 17 or more. In some casinos, the dealer will also draw to 'soft' 17 -- a 17 including an ace or aces that could also be counted as a 7. The most common soft 17 is ace-6, but several other totals, such as ace-3-3 or ace-4-2, on up to ace-ace-ace-ace-ace-ace-ace in a multiple deck game, are soft 17s.
Hit: If you hit, you take another card or cards in hopes of getting closer to 21. If the player's total exceeds 21 after hitting, the player is said to 'bust' and loses the bet. In shoe games, the player signals a hit by pointing to his cards or scratching or waving toward himself. In facedown games, the player signals a hit by scratching the table with the cards. Verbal calls to hit are not accepted -- signals are used for the benefit of the security cameras above the table, so a taped record is on hand to settle any potential disputes.
Stand: If you stand, you elect to draw no more cards in hopes that the current total will beat the dealer. Signal a stand by holding a flattened palm over your cards in a faceup game or by sliding your cards under your bet in a facedown game.
Double down: You may elect to double your original bet and receive only one more card regardless of its denomination. Some casinos restrict doubling down to hands in which your first two cards total 10 or 11. Others allow you to double on any two cards. Double down by taking a chip or chips equal to the amount of your original bet and placing them next to your bet. In a facedown game, at this point you also need to turn your original two cards faceup.
Split: If your first two cards are of the same denomination, you may elect to make a second bet equal to your first and split the pair, using each card as the first card in a separate hand. For example, if you are dealt two 8s, you may slide a second bet equal to the first to your betting box. The dealer will separate the 8s, then put a second card on the first 8. You play that hand out in normal fashion until you either stand or bust; then the dealer puts a second card on the second 8, and you play that hand out.
Insurance: If the dealer's faceup card is an ace, you may take 'insurance,' which essentially is a bet that the dealer has a 10-value card down to complete a blackjack. Insurance, which may be taken for half the original bet, pays 2-1 if the dealer has blackjack. The net effect is that if you win the insurance bet and lose the hand, you come out even. For example, the player has 18 with a $10 bet down. The dealer has an ace up. The player takes a $5 insurance bet. If the dealer has blackjack, the player loses the $10 bet on the hand but wins $10 with the 2-1 payoff on the $5 insurance bet.
Many dealers will advise players to take insurance if the player has a blackjack. This can be done by simply calling out, 'Even money' -- because if the dealer does have blackjack, the player gets a payoff equal to the player's bet instead of the 3-2 normally paid on blackjack.
These are the steps involved: Player bets $10 and draws a blackjack. Dealer has an ace up. Player makes a $5 insurance bet. Dealer has blackjack. The player's blackjack ties the dealer's, so no money changes hands on the original bet. But the $5 insurance bet wins $10 on the 2-1 payoff -- the same as if the original $10 bet had won an even-money payoff.
As it happens, dealers who suggest this play are giving bad advice. Insurance would be an even bet if the dealer showing an ace completed a blackjack one-third (33.3 percent) of the time. But only 30.8 percent of cards have 10-values. Taking insurance is a bad percentage play, no matter what the player total, unless the player is a card counter who knows that an unusually large concentration of 10-value cards remains to be played.
Variations
Not all blackjack games are created equal. Some variations in the rules are good for the player, and some are bad. The shifts in the house edge may look small, but they make large differences in a game in which the total house edge is less than 1 percent against a basic strategy player. Here are some common variations and their effect on the house advantage:
Double downs after splitting pairs permitted: A very good rule for the player, it cuts the house advantage by 0.13 percent. In areas where several casinos are within reasonable distance, the player should choose games in which doubling after splits is allowed.
Resplitting of aces permitted: At most casinos, the player who splits aces receives only one more card on each ace. But if the player receives another ace, some casinos allow the resulting pair to be resplit. This option cuts the house edge by 0.03 percent. It is rare to find a game that goes even further by allowing the player to draw more than one card to a split ace, an option that cuts the house edge by 0.14 percent.
Early surrender: When the dealer's faceup card is an ace, the dealer checks to see if the down-card is a 10 to complete a blackjack before proceeding with play. If the house allows the player to surrender half the original bet instead of playing the hand before the dealer checks for blackjack, that is early surrender. A great rule for the player, and one that is rarely found, early surrender cuts the house edge by 0.624 percent. Surrender can easily be misused by beginners who haven't mastered basic strategy.
Late surrender: Found more often than early surrender, but still not commonplace, late surrender allows the player to give up half the bet rather than playing the hand after the dealer checks for blackjack. This decreases the house edge by 0.07 percent in a multiple-deck game, 0.02 percent in a single-deck game.
Double-downs limited to hard 11 and hard 10: Some casinos do not allow the player to double on totals of less than 10 or on soft hands. The net is a 0.28-percent increase in the house edge.
Dealer hits soft 17: If, instead of standing on all 17s, the dealer hits hands including an ace or aces that can be totaled as either 7 or 17, the house edge is increased by 0.2 percent.
Blackjack pays 6-5: Common on single-deck games on the Las Vegas Strip, this game is a bankroll breaker for players. For example, a two-card 21 pays only $6 for a $5 bet instead of the usual $7.50, which adds 1.4 percent edge to the house--more than the usual house edge against the basic strategy of seasoned players in nearly all games with the normal 3-2 return.
Now that you know how to play, let's explore some of the finer points of the game. In the next section, you will learn the etiquette and strategy of blackjack.