Card counting tracks information about cards already dealt from a finite shoe. It estimates how the remaining composition has changed; it does not reveal the next card or guarantee a winning hand. Learn the game’s basic decisions before treating a count as useful information.
Play a hand. Keep the count.
Try Hi-Lo with a six-deck shoe. Follow the exposed cards, then hide the totals and check your own running count.
Dealer
Your hand
Your move. Hit or stand?
How the count works
Count each exposed card once. The dealer’s face-down card joins the count when revealed. True count = running count ÷ exact decks remaining in the shoe; the display rounds to one decimal. In real play, decks remaining must be estimated.
Free practice · Hit and stand only · Dealer stands on all 17s · Fresh shoe after 75% is dealt, before the next hand. No wagers or prizes. This trainer is a simplified exercise, not a simulation of every casino rule.
The Hi-Lo card values
| Cards seen | Add to the running count | Cards per standard deck |
|---|---|---|
| 2, 3, 4, 5, 6 | +1 each | 20 |
| 7, 8, 9 | 0 | 12 |
| 10, J, Q, K, A | −1 each | 20 |
Start at zero after a complete shuffle and update the total as exposed cards are counted. A complete standard deck has 20 positive tags and 20 negative tags, so its final count is zero. The same balance holds for multiple complete decks.
Follow a running count through eight cards
| Card | Tag | Running count afterwards |
|---|---|---|
| 5 | +1 | +1 |
| K | −1 | 0 |
| 2 | +1 | +1 |
| 9 | 0 | +1 |
| A | −1 | 0 |
| 6 | +1 | +1 |
| 3 | +1 | +2 |
| Q | −1 | +1 |
The final running count is +1. The neutral 9 still uses a card from the shoe, but it does not change the total. A previously hidden card is counted when it becomes visible; do not guess it or count a visible card twice.
Running count and true count are different
In Hi-Lo, the true count is the running count divided by the estimated number of decks remaining. It expresses the imbalance relative to the amount of undealt material.
| Running count | Estimated decks remaining | True count before rounding |
|---|---|---|
| +6 | 6 | +1 |
| +6 | 3 | +2 |
| +6 | 2 | +3 |
| −6 | 3 | −2 |
A fixed instruction such as “double your bet whenever the running count reaches +4” ignores how many decks remain and is not a complete strategy. Different counting methods use different conversion or rounding conventions. Keep the convention consistent with the system and index set you are studying.
What a positive count tells you—and what it does not
With this balanced system, a positive running count means more low-tag cards than high-tag cards have been removed. Relative to the starting composition, the remaining shoe is richer in high-tag cards. That can improve some player opportunities, including the frequency of naturals, but the dealer receives cards from the same shoe.
The count alone does not establish a profitable game. Payouts, other rules, cards dealt before a shuffle, decision accuracy and betting exposure all matter. Even an advantage under a suitable model does not guarantee profit in a session.
Basic strategy comes first
Our basic strategy charts state a particular rule set. Learn that chart only for a matching game. Count-based deviations use additional thresholds; they are not a licence to improvise whenever the running count is positive.
Keep these skills separate: recognise a hard, soft or paired hand; choose the basic-strategy action; maintain the running count; estimate decks remaining; then apply any properly learned, rule-matched deviations. A correct count paired with frequent playing mistakes is not reliable performance.
Three practice checks
Work out each answer before opening it. These exercises test arithmetic, not readiness to wager money.
Starting at zero: 2, 5, K, 8, A, 6. What is the count?
+1. The tags are +1, +1, −1, 0, −1, +1.
Running count +6 with three decks remaining: what is the true count?
+2. Divide +6 by 3. This example needs no rounding.
You finish one complete deck at +2. Is that a successful count?
No. A complete standard deck balances to zero in Hi-Lo. Review the cards and repeat slowly before increasing speed.
For physical practice, shuffle a complete deck, count it through and check the zero finish. Accuracy comes before speed. The homepage practice game is for hit/stand decisions, not a continuous-shoe card-counting trainer.
Why game format and shuffling matter
| Format or condition | What to establish | Why it matters |
|---|---|---|
| Fresh shuffle each round | Whether earlier cards carry into the next round | Previous-round depletion does not persist after a complete reset |
| Finite shoe | When the shoe is shuffled and how much is dealt | The amount of remaining material changes the meaning of a count |
| Continuous shuffling | How used cards are returned and mixed | Do not treat it as a conventional shoe dealt down to a cut card |
| Online or live dealer | The actual rules and shuffle procedure | The word online alone does not define the card model |
Do not infer a useful counting opportunity from the presence of a live dealer or a displayed shoe. Follow the venue’s rules and applicable local requirements. This guide provides no assurance about eligibility, acceptance by a venue or real-world profitability.
Frequently asked questions
Do I need to memorise every card?
Hi-Lo uses a running total rather than a complete list of cards. Maintaining it accurately while also making decisions still takes practice.
Does a positive running count guarantee the next card is a ten?
No. It describes a relative composition change. Low and neutral cards remain possible.
Why divide by decks remaining?
The same imbalance is more concentrated when fewer cards remain. The true-count conversion accounts for that difference.
Can a betting progression replace counting?
No. Changing stakes because the last hand lost does not track remaining-card composition and does not remove the house edge.
Does the free practice game train counting?
No. It teaches hit/stand decisions and does not provide a continuous-shoe counting exercise. Use the arithmetic exercises here to learn the tags.
Sources and further learning
References: Wizard of Odds introduction to counting and Hi-Lo system explanation. Continue with odds and house edge, deck-count differences and spending limits.
Keep the count for five hands.
Hide the trainer’s counts, track exposed cards and check your running count after each hand. Reveal the totals to check your work. Count practice does not replace basic strategy.
Free independent practice. No account, money or prizes. Practice results do not predict real-money outcomes.
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