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Atlassino Academy · Blackjack · Lesson 16 of 21

Card counting: what it is and isn't

What a running tally of the cards already dealt out of the shoe can say, what it cannot, and what the law and a casino each put in writing.

  • About 18 minutes
  • Illustrated hosts: Leo and Maya
  • Last checked 28 September 2026

People at a blackjack table talk about counting cards. What is a count, and what can it tell the person keeping one?

The short answer

A count is a running tally of the cards that have already been dealt out of the shoe and are lying face up in the discard tray. That tally says what the cards still inside the shoe add up to, taken all together, and it names not one of those cards.

Still inside the shoe
Nobody at the table has seen any of these cards, and nobody at the table knows the order they are sitting in.
Already dealt, lying in the discard tray
KKK44AA99771010
Every one of these cards was face up on the cloth before it went into the tray, and it stays in the tray until the shuffle.
Leo touches the clear side of a discard tray that is half filled with cards lying face up while Maya holds an open palm toward a closed dealing shoe at the other end of the same table, with two more face-up cards, one diamond and five spades, on the bare felt in front of the tray.

What a count is a tally of

At most blackjack tables the cards are not dealt from a deck in the dealer’s hand: blackjack is played with six standard decks dealt from a shoe. A shoe is a box that stands beside the dealer and holds all six decks at once. Once those six decks have gone into the shoe they stop being six separate decks: what is in the box is one pile of cards, in an order that was settled by the shuffle and shown to nobody in the room.

From there every card takes the same one-way trip, and until the shuffle it cannot be dealt again.

In the shoeShuffled in with the rest and seen by nobody.
On the clothDealt face up, in front of the whole table.
In the discard trayOut of play, and it cannot be dealt a second time.
Shuffled back inOnly here does the tray empty and the shoe fill again.

A count is a running tally of the cards sitting in that discard tray. There is nothing hidden in it and nothing is done to the game to keep one: every card in the tally was dealt face up in front of the whole table, and at a table dealt from a shoe the cards themselves are handled by the dealer and by nobody else. A person keeping a tally is adding up what the table has already been shown.

That also says where a tally has nothing to work on at all. The same rule book that sets out blackjack in B.C. also sets out Free Bet Blackjack, and that game is played with six standard decks dealt from a continuous shuffler. A continuous shuffler takes each hand back as soon as the hand is over and mixes those cards in with the rest, so at a Free Bet Blackjack table the discard tray never fills, and a tally of the cards already dealt has nothing to be a tally of.

Leo smiling, explaining with an open hand.

Leoformer dealer · rules and maths

Keep two questions apart: what a count is, and what a count does. The tally is arithmetic anybody who can add and subtract can keep; what it is worth to the person keeping it is a separate and much harder question.

What the tally is about, and what it is not

The shoe began the evening loaded with a known set of cards, and the discard tray now holds part of that set. Subtract the cards in the discard tray from the cards the shoe was loaded with, and what is left is what is still in the shoe, taken all together. That is what a tally of the cards already dealt gives, and it is plain subtraction rather than a knack.

What the subtraction does not touch is the order. The order of the cards in the shoe was fixed by the shuffle, it has been shown to nobody, and no amount of adding up the discard tray reaches it. So a tally of the cards already dealt names no card that is still inside the shoe, and the card that comes out of the shoe next is one of the cards still inside it.

What a tally of the cards already dealt is and is not arithmetic about
A tally of the cards already dealt is arithmetic aboutand it is not arithmetic about
which cards have already left the shoewhich card comes out of the shoe next
what the cards still in the shoe add up to, taken all togetherthe order those cards are sitting in
cards the whole table has already seen face upthe cards still lying face down inside the shoe, which nobody at the table has seen

Both columns are about the same two piles of cards. The difference between them is not how carefully the tally is kept: everything on the left is a statement about a pile taken all together, and everything on the right is a statement about one card, or about the order cards are stacked in.

Three things stay exactly as they are while a tally is being kept.

  • The order of the shoeset by the shuffle, shown to nobody, and not reachable by adding up the discard tray.
  • The dealer’s ruleprinted on the table and the same on every hand, whoever is sitting there.
  • Who handles the cardsthe dealer, on every hand, so a tally changes nothing about the game being dealt.

The one step a tally could act on

Suppose the tally is kept perfectly all evening. A round of blackjack has exactly one step where it could act at all: the amount of money that goes into the betting spot. Everything after that is either your own move, which the chart already settles, or the dealer’s hand, played by the rule on the table. And that one step comes first, while every card of the coming hand is still inside the shoe.

  1. The bet goes downThe amount in the betting spot is settled before a single card of this hand is on the cloth.
  2. The first cards are dealtTwo cards to each player and a card to the dealer, and from here nothing you see in those cards can make the amount already in the betting spot larger; splitting and doubling down put a second bet down beside it.
  3. You hit, stand, double down, split or surrenderThe move the chart calls for depends on your two cards and the dealer’s card, not on what anyone is keeping in their head. Surrender is the one move that answers to the cards and changes what the hand costs: it ends the hand there, and the dealer takes half the bet.
  4. The dealer plays the dealer’s handBy the rule printed on the table, which does not change from hand to hand.
  5. The hand is settledThe cards go into the discard tray, and the tally of what has gone grows by that much.

One round of blackjack in the order it happens. The highlighted first step is the only one where the size of the bet is still a choice.

That order — the money first, the cards second — does not make keeping a tally pointless. What it does mean is that a tally, however well it is kept, reaches one step of a round; that the step is a bet placed before the cards; and that a bet placed before the cards can still lose the hand that follows it.

What a hand costs either way

Whatever anybody at the table is counting, the price of playing is worked out from the rules on the table and from how the hands are played. Under the rules BCLC publishes for B.C. casinos, a share of every bet stays with the house however well the hands are played, and every move away from the full chart makes that share larger.

  • Playing every hand by the full chartlowers what the evening costs, hand by hand, against playing by feel.
  • Playing every hand by the full chartdoes not settle the hand in front of you one way rather than another.
  • Either waythe house keeps about 0.53% of every bet on average under these table rules, worked out for a table where the cards are shuffled after every hand.

The law, and the room

“Is counting allowed?” is two questions wearing one coat, and they have different answers because they are put to different people. One is a question about the law, which is written by a legislature and applied by a court. The other is a question about a private business and who it will have on its premises.

What the Criminal Code puts in one sentenceThe section on cheating at play names cheating together with an intent to defraud another person, in the same sentence. Whether anything a person does is caught by that sentence is decided by a court, and nowhere else.
What one casino company puts in its own code of conductIts list of reasons for turning a guest away or asking one to leave ends with a line that leaves the choice to the people running the building. The same code says a removal can carry a ban across that company’s other properties.
  • Written in the Criminal Codea section on cheating at play, and it names an intent to defraud another person.
  • Written in a casino company’s code of conductwho may be turned away or asked to leave, ending with reasons of the room’s own choosing.
  • Written nowhere we could readany rule about counting cards: no Canadian operator and no regulator whose published pages we could read prints one, for it or against it.

So nobody can point you to a published Canadian rule saying that people who count are shown the door, or to one saying they are left alone. What is on paper is one casino company’s code about its own door, and it leaves the choice with the room.

Maya with a hand on her chest, speaking gently and seriously.

Mayaformer floor supervisor · manners, money and breaks

The thing I would watch for here is not the arithmetic, it is the feeling that comes with it. A method you believe in is the easiest reason in the world to put down more money than you meant to. So decide how much money the evening gets and how long it runs while you are still at home, and stop when either one is used up. A run of losing hands is not a debt the table owes you, and putting more money down to get it back only makes the hour dearer. If the money on the table starts to feel like money you need, call one of the lines below — that is what they are for.

If it stops being fun

If gambling stops being entertainment, help is available. 19+ in most of Canada; 18+ in Alberta, Manitoba and Quebec. More on responsible gaming.

1-866-531-2600Ontario · ConnexOntario · 24 hours
1-800-461-0140Quebec · Jeu: aide et référence · 24 hours
1-888-795-6111British Columbia · Gambling Support BC · 24 hours
1-866-332-2322Alberta · Addiction Helpline (Recovery Alberta) · 24 hours
1-800-463-1554Manitoba · Problem Gambling Helpline · 24 hours
1-800-306-6789Saskatchewan · Problem Gambling Help Line · 24 hours
1-888-429-8167Nova Scotia · Mental Health and Addictions Crisis Line · 24 hours
1-800-461-1234New Brunswick · Gambling Information Line
1-855-255-4255Prince Edward Island · PEI Gambling Support Line · 24 hours
811Newfoundland and Labrador · Gambling Help Line · 24 hours
1-844-533-3030Yukon · Reach Out Support Line (CMHA Yukon)

If you are thinking about suicide, call or text 9-8-8

Practice table

No tally is kept in the practice table, and nothing in it asks you to keep one. What the practice table deals is the other half of the evening, the half a tally never reaches — your own move on the cards already in front of you. It deals hands from a shuffled shoe and checks your first decision on each hand against the chart for the table rules you pick. Decide with the buttons or with the keys H, S, D and R. There is no money on this table: the amounts beside each decision are averages for the example bet you choose.

The practice table needs JavaScript. Here is one hand from it, with the answer.

Dealer shows a 7

77

You hard 16

101066

The chart says: Hit.

Hard 16 against a 7: The dealer card is strong: standing on 16 loses whenever the dealer finishes on 17 or more, 73.8% of hands against a 7.

Average result per hand on an example bet of $10 (a minus means money lost): stand −$4.77 · hit −$4.09 · double −$8.17 · surrender −$5.00. Standing instead costs about $0.68 more each time.

How the practice table works

One strip, no rounds. Every square on the strip is one hand of this lesson, and they are all there from the start. The square keeps your first move on that hand; later moves in the same hand are still checked and explained. When a level’s squares are full the next level begins by itself, with no button in between, and the level buttons above the table are all live, so you can jump and come back.

Why a tally kept at this table would not come out. The hands are not dealt in the order the shoe was shuffled into. A hand belonging to a level is built by taking cards of the values that level is about out of the shoe, wherever in the shoe they are sitting, so the hand in front of you is chosen by the level rather than by the order the shoe was shuffled into. The shoe is shuffled fresh on arrival, again when about a quarter of it is left, as a cut card does at a table, and again whenever fewer than twenty cards remain.

Amounts. The figures beside each decision are averages from the same engine that works out the strategy chart, for the table rules you pick and for the example bet you pick. There is no balance, and nothing adds up from one hand to the next.

Check yourself

Maya with a finger raised and a knowing look.

Mayaformer floor supervisor · manners, money and breaks

Five quick ones. Pick an answer, then check it. No timer, no points: just whether it stuck.

1A count is —

Show the answer

Answer: a running tally of the cards that have already left the shoe. A count is arithmetic on cards that are lying face up in the discard tray, and that is the whole of what the word names.

  • a running tally of the cards that have already left the shoe. Every card in that tally was dealt face up in front of the whole table before it went into the discard tray.
  • a reading of the card that comes out of the shoe next. Nothing about the cards already dealt names the card that comes out next: the order of the cards still in the shoe was set by the shuffle and seen by nobody.
  • a record of how the last few hands were settled. How the last few hands were settled is not what a tally counts. A tally counts cards, and it counts them whoever the hand belonged to.
2A faultless tally of every card dealt since the shuffle fixes one thing about the cards still in the shoe. Which?

Show the answer

Answer: What the cards still in the shoe add up to, taken all together. Subtracting the cards in the discard tray from the cards the shoe was loaded with leaves what is still in there, taken all together. Nothing in that subtraction touches the order.

  • Which of the cards still in the shoe the dealer will draw. What the dealer draws is decided by the rule on the table and by the order of the shoe, and a tally of the discard tray reaches neither the rule nor the order.
  • What the cards still in the shoe add up to, taken all together. This is plain subtraction: the shoe was loaded with a known set of cards, and the discard tray now holds part of that set.
  • The order the cards still in the shoe are sitting in. The order was set by the shuffle and has not been shown to anybody. Counting what has come out says nothing about how what is left is stacked.
3At a blackjack table, the amount of money in your betting spot is settled —

Show the answer

Answer: before the first card of the hand is dealt. The money goes into the spot before the deal begins, and from the first card onwards nothing in the cards can make that amount larger: splitting and doubling down add a second bet beside it, and surrender ends the hand with the dealer taking half of it.

  • before the first card of the hand is dealt. This is the one step of a round where the size of a bet is still a choice, and it happens while every card of the coming hand is still inside the shoe.
  • at any point before the dealer turns over the dealer’s own hand. Once the deal has started, nothing you see in your cards can make the amount already in the betting spot larger. Splitting and doubling down put a second bet on the cloth beside it, and surrender ends the hand with the dealer taking half of it.
  • after your first two cards, so that a good hand can carry more money. Your two cards are dealt after the money is down, which is the whole reason the size of a bet cannot answer to the cards in front of you.
4Someone at the table has kept a faultless tally since the shuffle, and the dealer is about to deal the next hand. What does that tally give the person who kept it? new situation

Show the answer

Answer: A statement about the cards left in the shoe taken all together, and nothing about which of those cards comes out next. A statement about a pile of cards taken all together is a different kind of statement from one about the next card out of that pile, and only the first kind is arithmetic.

  • A statement about the cards left in the shoe taken all together, and nothing about which of those cards comes out next. That is exactly as far as subtraction reaches, and it is as true of a faultless tally as of a rough one.
  • The card the dealer is about to deal to the person keeping the tally. No tally of the cards in the discard tray names a card in the shoe. A faultless tally is not a different kind of statement from a rough one; it is the same kind, kept without mistakes.
  • A different rule for the dealer for the rest of the shoe. The dealer’s rule is printed on the table and is the same on every hand of the evening, whoever is sitting at it and whatever they are keeping in their head.
5Someone tells you counting cards is against the law in Canada. What is actually published?

Show the answer

Answer: A Criminal Code section on cheating at play that names an intent to defraud, and a casino company’s own code of conduct on who may be asked to leave. Two documents, and they answer two different questions: what the law makes an offence, and what a private business may do at its own door.

  • A Criminal Code section on cheating at play that names an intent to defraud, and a casino company’s own code of conduct on who may be asked to leave. The Criminal Code section and the code of conduct are what is written down. Neither of them says anything about counting on the pages we could read, and what the Criminal Code section covers is decided by a court rather than by a page like this one.
  • Nothing at all: neither the law nor any casino puts anything in writing about who may play. Both do. The Criminal Code has a section on cheating at play, and at least one casino company publishes a code of conduct saying who may be turned away or asked to leave.
  • A rule from the provincial corporation saying counting is not allowed at its tables. No Canadian casino operator and no regulator whose published pages we could read prints a rule about counting at all, in either direction.

Back to the question at the start of this lesson. A count is a running tally of the cards already dealt out of the shoe, and what it can tell the person keeping one is what is left in the shoe taken all together — not the card that comes out next, and not what the hand about to be dealt will do.

Where to play, and further reading

Blackjack in Canada The casinos that list blackjack, with the minimum bets they quote. Blackjack strategy The whole chart for these B.C. rules or for the rules on the sign at your own table.

19+ (18+ in AB, MB, QC) · Play responsibly · help, day or night: Gambling Support BC 1-888-795-6111, 24 hours

Further reading

  • Rules of Play for Table Games: Blackjack · British Columbia Lottery Corporation (BCLC)The rules this track follows section by section: six decks, the dealer on soft 17, doubling, splitting and surrender.
  • Game rules: Blackjack · Loto-Québec (Société des casinos du Québec)Québec’s rules: one to eight decks, a face-down dealer card, and the soft-17 rule left to the sign at the table.
  • Playing Blackjack · Fallsview Casino Resort and Casino NiagaraOne Ontario operator’s own booklet, including both blackjack payouts and both dealer rules it may post.
  • Blackjack: how to play · OLG PlaySmartOntario’s beginner page: the moves, the hand signals it describes, and what insurance is.
  • Know the game: Blackjack · Casinos Regina & Moose Jaw (SaskGaming)A Saskatchewan operator on what the chart does and does not do, and where to pick one up in the building.
  • Blackjack basics · Wizard of OddsWhat three common ways of playing blackjack without the chart cost, on that author’s own table.

How it’s worked out

Rules, numbers and hosts

Numbers. The share of a bet the house keeps is worked out when the page is built, by the same engine as our blackjack strategy tool, for the table rules this page is set to. It assumes the full chart, hard totals, soft hands and pairs together, and cards shuffled after every hand.

Why there is no figure for what a count is worth. The engine that prices every other number in this track assumes the cards are shuffled after every hand. That is a model in which a count cannot exist at all, so the engine cannot price one, and a figure it cannot recompute does not go on the page. No published figure has been borrowed in its place either: a number nobody here can check is the same problem in somebody else’s handwriting.

What is deliberately absent. There is no counting system on this page, no values assigned to the ranks, no running-to-true conversion and no scheme for varying a bet. None of those is left out for delicacy. Every one of those four is left out because the source pack this track is written from carries none of them, and a method described from memory is a method nobody here can check.

What we looked for and did not find. No Canadian casino operator and no regulator whose published pages we could read states a position on counting cards, in either direction. The reference page on counting we tried to read at one gambling-mathematics site does not answer at the address we had. What was found instead is what this page cites: the Criminal Code section on cheating at play, and one casino company’s published code of conduct on who may be turned away or asked to leave. An Ontario statute on entry to premises was read as well and is not quoted here, because this page is set to B.C. table rules and a statute of one province is not the law of another.

Not legal advice. The section of the Criminal Code is quoted word for word and nothing is concluded from it. What that section covers in any particular case is decided by a court, and anybody who needs an answer about their own situation needs a lawyer rather than a course.

Hosts. Leo and Maya are illustrated characters. Their backstories, a former dealer and a former floor supervisor, are written for the course: neither is a real person, and neither speaks for any casino. The rules and numbers on this page come from the sources it cites, not from their experience.

No promise. Blackjack is played against the house. Nothing on this page makes the game free of cost, and nothing on it says how an evening will end.

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