Casino Blackjack: Rules of the Game

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The game of blackjack or 21 is the most popular table game offered in casinos. If you are unfamiliar with the rules of casino blackjack or simply need some clarification on the finer points, you’ve come to the right place! I will tell you everything you need to know to play the game, and also explain the few rules that can differ from one casino to another.

If you are new to casino table games, it can be a bit intimidating the first time that you sit down at a blackjack table. Everything seems to move so fast, and more importantly, everyone else sure seems to know what they are doing!

Don’t worry. It’s really quite easy. Follow along, and you’ll know exactly what to expect at the table.

Part 1 – Casino Basics

Choosing a table

If you are new to the game, there are a few items you should notice when looking for a game…

The most important item is the sign declaring betting limits. If you are reading this, you probably don’t want to sit down at a table that requires a $100 minimum bet! Both the minimum and the maximum allowable bets should be on a sign on the table-top. Look around to find a table that suits your bet sizes.

Make sure that the table you have selected is actually for blackjack, and not another of the many kinds of table games that casinos offer. Look on the table for the phrase “Blackjack pays 3 to 2“. Avoid any games that say “Blackjack pays 6 to 5” instead. (See 6 to 5 Blackjack? Just Say No!.)

Next, take a look at how the game is being dealt. There are two different dealing styles:

  • Shoe games: The dealer distributes cards from a dealing shoe and the player cards are all dealt face-up. These games typically use 6 or 8 decks of cards.
  • Hand-held games: The dealer holds the cards in his hand and usually deals the player cards face-down. These games typically use 1 or 2 decks of cards.

Beginners should start off playing the shoe games. The advantage in this style is that all of the players’ cards are dealt face-up, so the dealer and other players can easily help you with playing questions and decisions. Once you become proficient at the game, you may want to switch to a game with fewer decks since that lowers the casino’s advantage.

Buying Chips

To play the game, you will need to exchange some cash for chips from the dealer.

Wait for a break in the action, and place your cash out in front of you on the table felt.

A few points of etiquette apply here:

  • Don’t try to hand your money to the dealer. For security reasons, he can’t take anything from your hands. Just lay it on the table instead.
  • Don’t put it into the betting circle, as some casinos will allow cash bets, and the dealer may think you want to bet it all!
  • Buy in for at least enough cash to play several hands. A typical $5 player might buy in for $40 or so.

The dealer will exchange the entire amount of cash for the equivalent in chips, and drop the cash into a box on the table.

Take a quick look at the chips to make sure you know the value of each color. Common chip colors are red for $5, green for $25, and black for $100.

If you have any questions, just ask the dealer. Part of his job is to help players learn the game.

Placing a Bet

Once you are ready to place a bet, wait for the current hand to be completed, then push your bet into the betting circle.

Your chips should be in one stack. If you are betting multiple denominations of chips, place the larger valued chips on the bottom of the stack, and the smaller value chips on top.

Once the cards have been dealt, you are not allowed to touch the bet in the circle. If you need to know how much you have bet for doubling or splitting (explained later), the dealer will count down the chips for you.

Once the hand is over, the dealer will move around the table to each position in turn, paying winning hands and collecting the chips from losing hands. After the dealer has paid you, you can remove your chips from the circle, and place your next bet.

If you want to let your winnings ride, you will need to form one stack of chips from the two or more stacks on the table after the dealer pays you. Remember, higher value chips should be placed on the bottom of the stack.

Cashing Your Chips

When you are ready to leave the table, you do not cash in your chips the same way you bought them. The dealer cannot give you cash for the chips at the table. To do that, you must take the chips to the casino cashier.

If you have a lot of low denomination chips in front of you at the table, you should trade them for the equivalent higher value chips instead. In between hands, just tell the dealer you want to “color up”, and he will have you push your chips into the middle of the table. He will count them down, and give you a smaller stack of chips that amount to the same value. This makes them easier to carry for you, and for the dealer it maintains his supply of smaller chips.

Now you can take those chips to another table for more play, or head to the casino cashier where you can exchange them for cash.

Part 2 – Blackjack Basics

Premise of the Game

Blackjack is pretty simple. The basic premise of the game is that you want to have a hand value that is closer to 21 than that of the dealer, without going over 21. Other players at the table are of no concern. Your hand competes only against the hand of the dealer.

The rules of play for the dealer are strictly dictated, leaving no decisions up to the dealer. Therefore, there is no problem with the dealer or any of the other players at the table seeing the cards in your hand. In fact, if you’re playing at a shoe game, the player cards are all dealt face up.

In any event, when you’re just learning to play, don’t hesitate to show the dealer or other players your cards and ask questions.

Values of the Cards

In blackjack, the cards are valued as follows:

  • An Ace can count as either 1 or 11, as explained below.
  • The cards from 2 through 9 are valued at their face value.
  • The 10, Jack, Queen, and King are all valued at 10.

The suits of the cards do not have any meaning in the game. The value of a hand is simply the sum of the point counts of each card in the hand. Some examples:

Five of ClubsSeven of HeartsNine of Diamonds
5 + 7 + 9 = 21, so this hand has a value of 21.

Jack of DiamondsTen of Spades
10 + 10 = 20, so this hand has a value of 20.

Nine of SpadesThree of SpadesQueen of Hearts
9 + 3 + 10 = 22, so this hand is a “bust”. Any hand that goes over 21 “breaks”, or is “busted”, and is an automatic loser.

Pretty easy, eh?

The Ace adds a new twist…

An Ace can be counted as either 1 or 11. You need not specify which value the Ace has. It is assumed to have the value that makes the best hand, and that may change as more cards are added to the hand.

Ace of ClubsSix of Diamonds
This hand is valued at 7 or 17, also known as a “soft” 17.

A soft hand is any hand where an Ace can be counted as either 1 or 11 without going over 21. The name reflects the fact that the hand can’t break if you draw another card. It’s “soft”.

Let’s draw another card:
Ace of ClubsSix of DiamondsKing of Spades

Now our hand is 17, since 1 + 6 + 10 = 17. We no longer have the option to count the Ace as 11, because that would go over 21. (This hand is now a hard 17, despite having an Ace in it.)

Let’s back up, and draw a different card instead:
Ace of ClubsSix of DiamondsThree of Diamonds

Now our hand is “10 or 20”, a soft 20. Twenty is a great hand, so we would stop there.

The Deal of the Cards

Once all the bets are placed, the dealer will deal the cards to the players. He will make two passes around the table starting at his left (your right) so that the players and the dealer all have two cards each. The dealer will flip one of his cards over, exposing its value as the “dealer upcard”.

(In some parts of the world, the dealer may get only one card. I’ll cover that in a moment.)

In games dealt from a shoe, the players’ cards will be face-up, and players are not allowed to touch the cards. If you are just beginning, this is the best kind of game, because you don’t have to worry about handling the cards.

Hand-held games are slightly different. In these games, the players’ cards are dealt face down, and players pick up the cards. When handling the cards in a hand-held game, here are a few important things to remember.

  • You must only touch the cards with one hand. If you are a poker player, this can take some effort to break old habits!
  • You must keep the cards over the table. Don’t pull them close to your body.
  • Any cards that the dealer subsequently deals to your hand are left on the table, not added to the cards you are holding.

Once the initial hands are dealt, play proceeds around the table starting at the first seat to the dealer’s left, also called “first base”. Each player in turn indicates to the dealer how he wishes to play the hand. (All of those choices are explained in the next part of this series.)

After all of the players have finished their hands, the dealer will complete his hand, and then pay the winning bets and collect the losing bets.

How the Dealer Plays His Hand

The dealer will first flip over the “hole card” to reveal his two-card starting hand. The dealer is then required to play his hand in a very specific way, with no choices allowed.

He must draw cards until he has a total of 17 or more. The dealer has no choice in how to play the hand. He must continue taking cards until his total is at least 17. (A slight variation of this rule is discussed below.)

Let’s look at one possible dealer hand:

Ace of ClubsFive of HeartsSeven of DiamondsSix of Clubs

After flipping over the hole card, the dealer’s hand was (Ace, 5). That makes a hand value of 16, so he must draw another card.

He drew a 7, making the hand value 13 (the Ace can no longer be counted as 11). With a total of 13, he must hit again.

He drew a 6, making the hand total 19. Since that is “17 or more”, the dealer stops with a final total of 19.

Wins, Losses, and Ties

Once the hand is over, how does the dealer decide which bets to pay, and which bets to collect?

If you draw a card that makes your hand total go over 21, your hand is a bust. That is an automatic loser. The dealer will immediately collect your bet, and discard your hand.

Assuming you did not bust, the dealer will play out his hand at the end. If he busts by going over 21, all the remaining players win their bets.

If neither you nor the dealer busted, now the dealer will compare his final total to yours.

If his total is higher than yours, you lose the bet, and he will collect your bet and put the chips in his tray.

If your total is higher than his, you win the bet, and he will pay the entire amount you have bet. After he pays you, you’ll have your initial bet plus the amount you won in the circle.

So, what happens if you and the dealer tie, with the same exact total? Nothing at all. A tie is called a “push”, and you do not win or lose your bet. Your chips stay in the betting circle where you can leave them for the next hand if you want, or you can add to or remove from them as you wish before the next hand.

What is a Blackjack, or Natural?

A blackjack, or natural, is a total of 21 in your first two cards. A blackjack is therefore an Ace and any ten-valued card, with the additional requirement that these be your first two cards. If you split a pair of Aces for example, and then draw a ten-valued card on one of the Aces, this is not a blackjack, but rather a total of 21.

The distinction is important, because a winning blackjack pays the player at 3 to 2. A bet of $10 wins $15 if the player draws a blackjack. A player blackjack beats any dealer total other than blackjack, including a dealer’s three or more card 21. If both a player and the dealer have blackjack, the hand is a tie or push.

The dealer will usually pay your winning blackjack bet immediately when it is your turn to play. In the face down games, this means that you should show the blackjack to the dealer at that time. Some casinos may postpone paying the blackjack until after the hand is over if the dealer has a 10 card up and has not checked for a dealer blackjack. Other casinos check under both 10 and Ace dealer upcards, and would therefore pay the blackjack immediately.

Regardless, when you are dealt a blackjack, turn the cards face up, and smile. It only happens about once every 21 hands, but it accounts for a lot of the fun of the game.

Part 3 – Player Choices

Hitting and Standing

The most common decision a player must make during the game is whether to draw another card to the hand (“hit”), or stop at the current total (“stand”).

You will be required to make hand signals rather than just announcing “hit” or “stand” to the dealer. This is to eliminate any confusion or ambiguity in what you choose, and also for the benefit of the ever-present surveillance cameras. If you go over 21, or “bust”, the dealer will collect your bet and remove your cards from the table immediately.

How you signal your intention to the dealer depends on which style of game you are playing:

Hand Signals in the Shoe Game

In the face-up shoe game, you indicate that you want another card by tapping the table behind your cards with a finger.

When you decide to stand, just wave your hand in a horizontal motion over your cards.

Remember that you are not allowed to touch the cards in this style of game.

Hand Signals in the Hand-Held Game

In the face-down game, things are a little different. You will hold the first two cards with one hand.

To let the dealer know that you want to draw another card to your hand, scratch the table with the bottom of your cards lightly. Watch another player at first to see how this works. The dealer will deal your additional cards on the table in front of your bet. Leave those cards on the table, but mentally add them to your total hand value. If you go over 21, just toss the two cards in your hand face up on the table. The dealer will collect your bet and discard your hand.

When you decide to stand, tuck the two cards you are holding face-down under the chips in your betting circle. This can be a bit tricky the first few times. Don’t pick up the bet to place the cards underneath. Remember, once the cards are dealt, you can’t touch the chips in the circle. Simply slide the corner of the cards under the chips.

Describing these moves makes them sound complicated. They’re not. Just pay attention to what other players are doing and you will fit right in.

Doubling Down

Much of the excitement and profit in blackjack comes from hands where you are able to “double down”. This option is available only with a two card hand, before another card has been drawn. Doubling down allows you to double your bet and receive one (and only one) additional card to your hand.

A good example of a doubling opportunity is when you hold a total of 11, like a (6,5) against a dealer’s upcard of 5. In this case, you have a good chance of winning the hand by drawing one additional card, so you should increase your bet in this advantageous situation by doubling down.

If you are playing in a hand-held game, just toss your original two cards face-up on the table in front of your bet.

In either type of game, add an additional bet to the betting circle. Place the additional bet adjacent to the original bet, not on top of it.

The dealer will deal one additional card to the hand. In a shoe game, he will probably deal the card sideways to indicate that this was a double-down. In a hand-held game, the card will be tucked face-down under your bet to be revealed after the hand is over. Depending on what the dealer makes on his hand, it can be an exciting wait to see that card revealed at the end!

You are allowed to double down for any amount up to your original bet amount, so you could actually double down for less if you wanted. That’s a bad move though. Remember that you do give up something for being allowed to increase your bet: the ability to draw more than one additional card. If the correct play is to double down, you should always double for the full amount if possible.

And just when should you double down, you ask? For that information, just use our Blackjack Basic Strategy Engine.

Splitting Pairs

When you are dealt a pair of cards of the same rank, you are allowed to split the pair into two separate hands and play them independently. Let’s say you are dealt a pair of eights for a total of sixteen. Sixteen is the worst possible player hand, since it is unlikely to win as is, but is very likely to bust if you draw to it. Here’s a great chance to improve a bad situation.

If you are playing a hand-held game, toss the cards face-up in front of your bet just like a double down. Then, in either type of game, place a matching bet beside the original bet in the circle. Note that you must bet the same amount on a split, unlike a double-down where you are allowed to double for less.

The dealer will separate the two cards, and treat them as two independent hands. He will deal a second card on the first eight, and you will play that two-card hand to completion. (Many casinos will let you double-down on that two-card hand if you want. I will discuss the “Double After Split” option in Rule Variations.)

No matter what happens on your first hand, when you are done with it the dealer will deal a second card to your next hand and the process starts all over.


If you get additional pairs in the first two cards of a hand, most casinos will allow you to resplit, making yet another hand. Typically a player is allowed to split up to 3 times, making 4 separate hands, with 4 separate bets. If double after split is allowed, you could have up to 8 times your initial bet on the table!

Splitting Tens

Note that you are allowed to split any 10-valued cards, so you could split a (Jack, Queen) hand. However, this is usually a bad play. Keep the 20. You will make more money on the pat 20 than you will trying to make two good hands from it.

Not convinced? I wrote a post about just that: Why Splitting Tens is a Bad Move.

Splitting Aces

Another oddity comes when splitting Aces. Splitting Aces is a very strong player move so the casino limits you to drawing only one additional card on each Ace. Also, if you draw a ten-valued card on one of your split Aces, the hand is not considered a Blackjack, but is instead treated as a normal 21, and therefore does not collect a 3:2 payoff.

Some casinos allow resplitting Aces if you draw another, but many do not.

With all these limitations, you may wonder whether it makes sense to split Aces.
The answer is a resounding YES. Always split Aces.

For accurate advice on what other pairs you should split, consult the Blackjack Basic Strategy Engine.

Part 4 – Insurance and Surrender


Insurance in blackjack is often misunderstood by players, and is a big money-maker for casinos. Naming this side-bet “insurance” was a brilliant marketing ploy, and some otherwise solid players will frequently make this bad bet to “insure” when they have a good hand. But actually, insurance is not always a bad bet. For players who can recognize when the remaining deck is rich in ten-valued cards, this can actually be a profitable side-bet.

So, what exactly is “insurance” in blackjack anyway?

Insurance is a proposition bet that is available only when the dealer’s upcard is an Ace.

When the dealer turns up an Ace, he will offer “Insurance” to the players. Insurance bets can be made by betting up to half your original bet amount in the insurance betting stripe in front of your bet.

The dealer will check to see if he has a 10-value card underneath his Ace, and if he does have Blackjack, your winning Insurance bet will be paid at odds of 2:1. You will still lose your original bet (unless you also have a Blackjack), so the net effect is that you break even (assuming you bet the full half bet for insurance.) This is why the bet is described as “insurance”, since it seems to protect your original bet against a dealer blackjack. Of course, if the dealer does not have blackjack, you’ll lose the insurance bet, and still have to play the original bet out.

Insurance is simply a side-bet offering 2:1 odds that the dealer has a 10-valued card underneath their Ace. Not surprisingly, the casino has a substantial edge on this bet. In a single deck game, there are 16 ten-valued cards. Assuming that you don’t see any other cards, including your own, the tens compose 16 out of 51 remaining cards after the dealer’s Ace was removed. For the insurance bet to be a break-even bet, the hole card would have to be a ten 1 out of 3 times, but 16/51 is only 1 in 3.1875.

That creates a 5.88% house edge on the insurance bet in single deck. It’s even worse in six decks with a 7.40% house edge.

Card counters can still beat the insurance bet, by only making the bet when they know that more than one-third of the remaining cards are tens.

Unless you are card counter and know the deck is skewed sufficiently, just ignore the insurance bet. It doesn’t matter whether you have a good hand or a bad hand.

Taking “Even Money” on Blackjack

If you have a blackjack when the dealer turns up an Ace, he is likely to offer you “even money” instead of the insurance bet. If you accept, the dealer will pay you the amount of your original bet and discard your hand of blackjack, before he even checks under his Ace to see if he has a blackjack as well.

Many players think this sounds like a good deal, guaranteeing a profit even if the dealer has a blackjack. But that guaranteed profit comes at a price. You will win more money in the long run by holding out for the full $15 payout when the dealer does not have blackjack, even though you will sometimes end up empty-handed.

“Even money” is nothing but an insurance bet on your blackjack, nothing more and nothing less. Let me show you how it works:

Let’s say you bet $10, and have a Blackjack. You would normally collect $15 for this, unless the dealer also has a blackjack in which case you push or tie. Let’s assume that the dealer has an Ace up, and you decide to take insurance for the full amount allowed of $5.

Now, two things can happen:
1) The dealer has a Blackjack. You tie with the $10, but collect 2:1 on the $5 insurance bet for a total profit of $10.
2) The dealer does not have Blackjack. You lose the $5 insurance bet, but collect $15 for your blackjack. Your total profit is again $10.

In either case, once you make the insurance bet you are guaranteed a profit of $10, which is an even money payout for your original bet. So, casinos allow you to eliminate the insurance bet altogether, and simply declare that you want “even money” for your blackjack when the dealer has an Ace showing.

The problem is that you are still making a bad bet on insurance, which costs you money. If you ignore the offer of even money, sometimes you get $15, and sometimes you get $0. But on average, you will collect slightly more than the $10 you are offered for even money.

A player who does not count cards should simply never take the insurance bet, even the “even money” variety.


Some games offer the player a chance to fold their hand, and forfeit half of their bet. This surrender option must be done as the very first action the player takes on the hand. In other words, you can’t draw a card and then decide to bail out!

Even when surrender is available, it is rarely used by players. Often, the rules posted at the table won’t mention it even if the casino allows it. And many players just don’t like the idea of surrendering a hand. But for a smart player, it is a useful option, and reduces the house advantage by about 0.08%.

When surrender is available, make sure you know the correct strategy for using it. Most players who use the option surrender too many hands. If your game offers surrender, I recommend reading my complete explanation of blackjack surrender.

In the most common variety (known as “late” surrender), a player cannot surrender until after the dealer has checked for blackjack. If the dealer has blackjack, you will lose your entire bet with no chance of surrendering for half the cost.

Part 5 – Rule Variations

There are a few rules in blackjack that can vary slightly from casino to casino.

Dealer Hits Soft 17

Generally, the dealer in blackjack must hit if he has a total of 16 or less, and stand if he has 17 or more.

But at some games there is an exception when the dealer has a hand of “soft” 17.

If you look at the table, you will see one of two phrases on the felt:

  • Dealer Stands on All 17s: This is the simple version. The dealer will stand with any total of 17 or more, whether that total is “soft” or not. (This rule is abbreviated S17. The S is for Stand, not Soft!)
  • Dealer Hits Soft 17: In casinos with this rule, the dealer will stand with any hard 17, but draw another card if he has a soft 17, such as (Ace, 2, 4). (This rule is abbreviated H17.)

Seventeen is a weak hand, so if the dealer is allowed to try to improve the soft 17 hands, it makes the game tougher. When a dealer is allowed to hit soft 17, it adds about 0.2% to the house advantage.

Years ago, the only “Hit Soft 17” games in the US were in and around Reno, Nevada. Almost all other areas used the better rule of standing on all 17s. Over the years, more and more casinos have switched to hitting soft 17, and there are now far more H17 games than S17 games.

You can still find some games where the dealer stands on all 17s, even in casinos where some of the tables use the H17 rule. Look around!

Double After Split

After splitting a pair, many casinos will allow you to double-down on a two-card hand that arises as a result of the split. For example, if you split a pair of eights, and draw a 3 on the first hand, it is valuable to be able to double-down on the resulting hand of 11.

This rule is fairly common, and it helps the player by about 0.12%.

Resplitting Aces

As mentioned in the previous section discussion on pair splitting, there are several common restrictions on splitting Aces. You will receive only one card on each Ace after splitting.

Some casinos will allow you to resplit if you draw another Ace, and some will not. That’s true even if the casino allows resplits of all other pairs.

When the casino does allow resplitting of Aces, it helps the player by about 0.08%.

This rule is rarely posted at the table. If you are curious, you will need to ask the dealer.

Peek or No-Peek, Hole Card or No Hole Card

Many casinos in Europe, and some in other parts of the world, handle the dealer’s second card differently. In these “European No Hole Card” games, the dealer only deals himself one card at the beginning of the round. After all the players have completed their hands, he deals his own second card and completes the hand.

Contrast that with the normal US style of play. There, if the dealer has a ten or Ace card up, he checks the other card immediately to see if he has a blackjack. If he does, the hand is over. This process of “peeking” under the hole card to check for blackjack means that players can only lose one bet per hand if the dealer has a blackjack.

In a No-Hole-Card game, a player might split or double and have multiple bets at risk to a dealer blackjack, because the dealer cannot check ahead of time. This changes the optimal strategy, and means that players should usually not split or double against a dealer ten or Ace upcard. (An exception is splitting Aces against a dealer ten.)

Note that there are a few no-hole-card games where the rules specifically say that only one bet will be collected from a player if the dealer has a blackjack. In those games, although there is no hole card, you can play the game as if there were. (That means you should play it as a Peek game, even though there’s not really a peek!) It’s all a bit confusing.

When the No-Hole-Card rule is in use, and all bets are at risk to a dealer blackjack, it costs the player 0.11%, and players should revise their strategy appropriately. (Use the “No-Peek” option at our Strategy Engine.)

What’s Next

So, if you have made it this far, congratulations. You should have a good idea of what to expect when you sit down at a blackjack table in the casino.

What we have not talked about is how to actually make the best decisions while playing the game. That is a whole subject all its own. To have the best chance of winning, you should learn and practice “basic strategy”, which is the mathematically best way to play each hand against each possible dealer upcard.

For a free chart that shows the right play in every case, visit our Blackjack Basic Strategy Engine.

You’re well on your way.

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Hopefully I’ve covered just about everything you need. But if you have other questions, feel free to post a reply at the bottom of the page.

While you are here, check out some of our most popular features:

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If you prefer a plastic card that you can take to the table with you, we have those too: Blackjack Basic Strategy Cards.

The original version of this explanation of the rules of blackjack has a very long history here at I created and published it here sometime in 1998. It was widely copied by other sites, and it has appeared without my permission on literally hundreds of sites over the years. When I relaunched BlackjackInfo with a new mobile-friendly design in 2014, I took the opportunity to write this all-new version.

58 comments on “Casino Blackjack: Rules of the Game

  • Brad Railer said:

    Wow this website made me win big I started with 1k and I left with about 5.79K Thx!

  • Larry D. said:

    Hello Ken, On a recent trip to Laughlin, Nevada, playing blackjack at the Riverside Casino, I was in total shock at the table rules. You can Double down ONLY on a HARD TEN / ELEVEN OR HIGHER, CAN’T DOUBLE DOWN ON ANY SOFT HANDS AND NO DOUBLE DOWN AFTER A SPLIT. Blackjack did pay 3/2 and dealer hits soft 17. Can a person win under those rules? I quit playing there. Any other suggestions? I generally play at the Indian Casinos in Calif. where the rules are more favorable to the player. The biggest problem of all is…………… my lovely lady friend loves the Colorado River and wants to go back. Thanks so much for any suggestions, Larry D. P.S. Please don’t suggest a new girlfriend.

    • Those rules are definitely tough. Even if it is a 2-deck game, the starting house edge in that game is still 0.75%.
      It’s been a long time since I played in Laughlin, but I would surprised if there aren’t better choices available. Look around at some of the other places and see what’s available.

  • Barry Cameron said:

    I’ve noticed that some advantage players hit on A+7 when the dealer has a 2 whereas your strategy here indicates that stand/stay would be the preferred choice with 8 decks, DAS, No surrender, and no peek. Any thoughts on this difference?

    • It is likely that you saw players doubling A7v2, not just hitting it. (Hitting would simply be a mistake, as it is the third best way to play the hand.)

      The choice of whether to stand or double with A7v2 is a close one.
      In fact, correct basic strategy for that hand depends on whether the dealer hits or stands on soft 17s.
      (The strategy engine takes all this into account when creating an accurate strategy chart for you.)

      In S17 games, you should stand.
      In H17 games, you should double. (Except in single deck.)

      Card counters will often double this hand even in S17 games, because it only takes a true count of +1 or more to make this the correct play.

  • Blackjohn said:

    Can you please explain why when I have 12, I should stand if the dealer has 4-5 o/w hit? OR I have 13-16, I should stand when the dealer has 2-6, o/w hit?
    I think it’s better to remember the strategy if I understand it

    • When the dealer has a 2 through 6 up, they must draw another card (except A6 depending on the table rules). As a result, the dealer busts more often with those upcards. This is why standing on player totals of 12-16 is the best play against the small dealer upcards. As for 12v2 and 12v3, those are just exceptions you have to remember. Because the dealer busts less often with 2 and 3 up, and you have a lower chance of busting than with player totals of 13-16, the math just swings the decision in those cases so that hitting is better than standing. That’s with 12v2 and 12v3 only.

  • Tell me about the best place to sit at a table in Vegas. I have heard that you do not want to be on the end.

    • If you are a basic strategy player, it makes no difference where you sit.
      If you are a card counter, you can see an extra few cards before you play your hand by sitting at the end, which helps a small bit.
      However, since many players are erroneously convinced that the “third-base” player can affect everyone’s results, they often are combative if they disagree with your play in that seat. For that reason, many players avoid it.

  • Mattie said:

    I am looking for information on 5 cards and under. Is there a rule that applies to this?

    • Are you asking about a rule that pays you for having 5 cards and not busting? This kind of “5-card Charlie” rule would be unusual to find in a casino as it adds well over 1% for the player. 6-card and 7-card automatic wins are found sometimes, though they are far less valuable.
      The free Windows software at this site will analyze these rules for you, including optimal strategy and the effect on the game.
      Here’s the link: Free BJ Combinatorial Software

  • Artieboy said:

    Hi Ken:
    Didn’t your web site have a link to a page that had a very long list of different rules and their overall effect, for example 5 cards automatically wins, double on any 3, etc? I remember the link said “i have more rules here”. It was a cool list.

    Just wondering


  • The white steve harvey said:

    Tipping the dealer.
    common etiquette?

    • Yes, tipping the dealer is common. Just be aware of how much you are tipping over the course of an hour, and don’t let it get out of hand. If a dealer is pleasant, I like to tip a small amount on the hand after I get blackjack, but even then I skip some hands.

  • Hi,
    Love your website thank you I’m finding it very helpful! I’m wondering if you can please tell me if I use the Basic Strategy cards online blackjack will they work to be profitable overall in the long term if I follow the rules as they are? Thanks in advance!
    Warm regards,

    • Basic strategy will reduce the house edge, but not eliminate it. In typical games, your long-run expectation will be to lose around half a percent of your total action.

  • Yvonne said:

    In blackjack if you are dealt 5 cards under 21 do you automatically win the hand?

  • Hi, Ken,

    My question is: Whay you double down at 9 against a 4 or 5 and you don’t at A,8, since I have the same a total of 9 ?

    • The difference is that you must draw a card to your total of 9, whether you double or not. Standing is not an option. With A8 instead, you already have a completed solid hand of 19.

  • Hi, can please anyone help me with an answer. Do casinos now change the deck of cards after every game or not? Because I heard lot of people saying that now it is impossible to memorise cards that are still in the game. But I am not sure if this is due to change or because casino use so many decks at once (I read above that there are 8 decks in the game)

    • I think what you are trying to describe are continuous shuffle machines (CSMs), which allow the dealer to put the discards back into the machine immediately instead of waiting until the shuffled shoe is completed. The use of a CSM does eliminate the ability to count cards. Fortunately, there are still plenty of games available in most areas that do not use CSMs.
      As for “memorizing” cards that are still left to be dealt, that is not necessary. Card counting allows you to use a much simpler system of just maintaining a single number (the running count), that reflects whether the remaining cards are biased towards high cards or low cards. No need to memorize anything.

  • Laurian said:

    I was in Cancun in a casino and in one hand I had 2 Aces against dealer King. I split the 2 Aces and I,ve got Queens on both aces but the dealer draw a card that was an Ace and said that he won since he had blackjack and I only had it a correct rule?

    • That is correct. Blackjack is 21 in the first two cards, and it beats a total of 21, even the case of splitting and getting two hands that look like blackjack. They are just 21s. Note that in the normal US rules, this can’t happen, because the dealer deals a hole card and checks it for blackjack before the players can do anything. But when the dealer does not take a hole card (and all bets are subject to losing to a potential dealer blackjack), you should not double or split against a dealer ten or ace because of this. The only exception: Continue splitting Aces against a dealer ten. (So your play was correct, even though it lost!) You can use the Strategy Engine “No Peek” setting to generate the correct strategy for this.

  • Craig Nichol said:

    Awesome page, One question.. regards the splitting phase, you say that the dealer only gives the player a card on the second eight after he stands or busts on the first. Is this a standard rule? I’ve come across casinosthat offer standard BJ where the dealer hands one card each on each eight and then plays each hand independently? Need to be sure which is the standard and which is the exception… Thanks

    • I have seen the behavior you describe in online casinos, but I have never seen it dealt that way in any land-based casino. There, the dealer always deals a card to the first split hand, finishes that hand, and then deals a card to the second split hand and begins it.

  • craig follis said:

    what is the best blackjack game for visual impaired people either shoe or facedown games and can a friend help with telling what the cards are being played or play for the visual impaired person . and can ask the blackjack tables and deelers before sitting down if this is possible incasino blackjack play.

    • The shoe game will be easier for a visually impaired player, because both the other players and the dealer have full access to the needed information about the hands. I have played at the table on many occasions with blind players, and the dealer has always assisted by verbally providing the details of the hand. I have even seen players request that the dealer call out other player’s hands as well, and while that is perhaps not always available, I have seen it done.

      On several of the televised blackjack tournaments that I participated in, Regina Guzior was often a competitor. She was a very talented tournament foe, despite being completely blind. It was always a pleasure to compete against her.

      One more thing. You asked if a friend can assist. The answer there is yes. And this means that face-down games can be easily managed as well.

  • Itachi said:

    can I bring your black jack strategy engine in the casino? or is it not allowed?

    • I assume you are asking about accessing the charts on your smartphone in the casino. I do not recommend that. In the US, there are laws prohibiting the use of devices in gambling. Most of these laws are based on the Nevada version, which is written in a way that it could be interpreted to mean even something as harmless as looking up a strategy. You don’t want to be the test case for this. If you want access to the strategy in the casino, get a plastic card instead.

      • Itachi replied:

        I see, you got a really good thing over here 🙂


  • george v. hillstead said:

    what is ment by rare hand like ( a 3 or 9 3 ) i am playing a game call hit or stand witch it grades you on the correct amount of hands that you get correct so far these two hands do not double this is a rare hand

    • I’m not sure why anyone would describe hands like (Ace,3) and (9,3) as “rare”. You will draw each of those hands about once every 169 hands or so.
      As to whether or not to double, (9,3) is a hard 12 and should certainly never be doubled. (Ace,3) should be doubled vs dealer 5 & 6. (Also against a dealer 4 in some 1 and 2 deck games.) See the Strategy Engine for accurate advice for any game.

  • Fred said:

    If I have two aces, can I count one as “1”, and the other one as “11”, making a total of 12 ? Or do I need to count them equally ?

    • There is no need to “assign” a value to the Aces, and no need to choose the same value for multiple Aces. Treat them independently, and reassess after each drawn card changes the hand.
      Here are some examples:
      (Ace, Ace) = Soft 12 (2 or 12)
      (Ace, Ace, 8) = Soft 20 (10 or 20) You should stand with 20, regardless of the dealer upcard.
      (Ace, Ace, 4) = Soft 16 (6 or 16) You should hit this hand, regardless of dealer upcard.
      (Ace, Ace, Ten) = Hard 12 You may hit or stand on this hand, depending on the dealer upcard.
      (Ace, Ace, 4, 8) = Hard 14.

      Note that these examples are bit contrived, because if your first two cards are Aces, you should split instead.

  • Jose said:

    Hi Ken,

    I read the following in the Casino Verite Software: “A perfect side count for Insurance purposes would count Tens as -9 and all other cards as +4”. But it doesn’t explain how to use this indicator. Can you help me with this?


      • Jose replied:

        Thank you for the reference. It is very interesting.

        There you can find: “Tens are counted as -2 and all other cards as +1. Insure if the count is greater than four times the number of decks”.
        1) when he said the count it means the running count?
        2) when he said the number of decks is the remaing decks in the shoe or the total decks of the game?

        Thank you in advance.

        • 1) Yes, use the running count for the decision. (This works because of the unbalanced nature of the count.)
          2) Base the index on the total number of decks in the game. In a six-deck game, insure at +24, regardless of how many decks have been dealt or remain to be dealt.

  • Bob said:

    In Atlantic City casinos Blackjack tables is a side bet called Match The Dealer (MTC).Is this a good bet? What is the house percentage?

  • Scott Jaffe said:

    I’ve played an online blackjack that when dealt two Aces automatically changed one of them to count eleven. I didnt catch it at first but sure enough when I drew another card I busted. This particular game would not count both my Aces as one. Is this ever done at a casino?

    • Yikes! That’s a terrible rule, and one I have never personally seen. I wouldn’t trust any online casino that does such a poor job of implementing blackjack, as I suspect it was just a programmer that didn’t understand even the basics of the game. Who knows what else they are doing wrong! To answer your question, no, this is never done at any casino I have visited.

  • Scott Jaffe said:

    also, I’ve tried to write a casino a couple times to find out their particular blackjack rules. No response. Should I be able to ask a casino to provide a copy of their rules?

    • I assume you are talking about online casinos. I would recommend avoiding any place that doesn’t have the rules clearly available on their site. Certainly, if they don’t respond to requests for the rules, that’s all I would need to know about their level of support. No way!

  • Rimas Parakininkas said:

    Is there any standard in the way a dealer deals from the deck? I know that casino’s use multiple decks and deal from them till they run out. However, as of late I’ve noticed that they are taking the cards and putting them in a shuffling machine after every hand so you cant see how many cards are left until the end of the decks is reached. I don’t actually count cards but I get an idea on whats is going on by watching what was played and what is left to be dealt. Is this allowed? As I just asked this question I suppose that its whatever the casino wants to do, Isn’t there some guidelines that they have to follow.

    • You are describing a CSM (continuous shuffle machine), where after each hand the dealer immediately puts the used cards back into the shuffler. As you note, this eliminates the ability to count cards, or to even observe a useful bias. Since used cards can return into play immediately, the penetration is effectively zero. These machines have spread widely. The only recourse is to see if your casino also still offers regular games (either hand-shuffled, or machine-shuffled but with a normal discard tray). If not, voice your discontent and look elsewhere.

  • Sierra Reid said:

    I have a question. I’m just a beginner player but is 8 the maximum number of decks that are allowed to be used in a game of original blackjack? I signed up on an online casino and I was getting ready to play blackjack for real money and I asked the live chat help person how many decks were being used and she said 24 decks. Is that allowed?

    • Casinos, both online and land-based, can deal the game pretty much any way they like, including increasing the number of decks to a ridiculous 24! Fortunately, once you get to 8 decks, the game does not get much worse for the player by adding even more decks. In fact, there have been online casinos that dealt from “infinite” decks, which simply means that the probability of each rank of card being dealt is always 1 in 13.
      For a basic strategy player, it doesn’t affect the game much going from 8 decks to 24 decks, or even infinite decks. Use the 8-deck strategy for these games.

  • Say I’m the dealer and I have two players, the player on the left has 18 and stays and the other player on the right hits 21. As the dealer I get up to 20. Can the dealer chose to stay and take the chips bet from player on the left. But pay the player on the right?

    • The dealer cannot CHOOSE to do anything. His rules are fixed. He must hit until he has 17 or higher, and then he must stand. Even if all the players at the table have 18, the dealer must stand if he ends up with a 17.

      One complication: Most casinos now deal games with an extra rule about soft 17. In the “Dealer Hits Soft 17” games, if the dealer has a hand like (Ace,3,3), that’s a “soft” 17, and he must hit again. This is covered in detail in the article above.

      In your particular example, the dealer of course must stand with a total of 20, and he will collect the chips from the player with 18, and pay the player with 21.

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