Blackjack card counting, 2026
Learn to count cards for real, one card at a time
A live Hi-Lo drill, not another article about counting. Cards deal from a shuffled six-deck shoe, you call each one's value, and the tool tracks your speed and accuracy as you build up from a relaxed pace to full table speed.
Call each card's Hi-Lo value before the next one deals. On auto speeds, a missed answer counts as wrong and the shoe keeps moving, just like a real table.
Running count vs true count, worked properly
It's always good to start with clear definitions. The running count is the simple tally: every time a 2 through 6 appears, add 1, every 10, J, Q, K or ace, subtract 1, and 7, 8 and 9 do nothing. That's the number the drill above tracks card by card. On its own, though, a running count of +8 means something very different in a shoe with six decks left than in one with half a deck left, the same number of extra low cards is a much bigger share of what's left to be dealt. The true count fixes that by dividing the running count by the estimated decks remaining, running count ÷ decks remaining = true count. Use the "Check the count" button above at any point in a drill to see both numbers worked out from where you actually are in the shoe.
The Hi-Lo values, for reference
| Cards | Hi-Lo value |
|---|---|
| 2, 3, 4, 5, 6 | +1 |
| 7, 8, 9 | 0 |
| 10, J, Q, K, A | -1 |
Is card counting illegal?
No, and this is worth being precise about. Counting cards in your head, using only information dealt face-up in front of you and basic arithmetic, isn't fraud or cheating under UK law or in most regulated markets. What it does breach is the private terms of service almost every casino sets, which means a casino can legally refuse to deal to a suspected counter, limit their bets, or ban them from the property entirely, the same way any business can decline custom. Using an external device or app to count for you is a different matter, and is both against the rules and often against gambling law specifically, unlike counting in your own head.
Why this is a different category from a "predictor" app
It's worth being clear about where this sits relative to the "AI predictor" apps debunked elsewhere on this site. Card counting doesn't predict anything, it tracks public information, which cards have already been dealt, to update a known probability, using nothing but arithmetic a person can do in their head. That's fundamentally different from a roulette or slot "predictor" claiming to know a future random outcome it has no information about. Counting only works at all because a physical shoe is dealt down without full reshuffling between hands, which is exactly why it doesn't apply to RNG-based online blackjack, and why live-dealer studios that do use a real shoe lean on live dealer AI tracking, computer vision watching every card and shuffle, specifically to catch the pattern of bet sizing that gives a counter away.
Once you've got the raw card values down, the strategy chart is the next layer, since serious counters deviate from basic strategy at specific counts. And every recommendation this drill and the chart are built on ultimately comes from the same source as the Blackjack AI calculator, ready to check a specific hand whenever you want a straight answer instead of a full table.
FAQ
Card counting, answered plainly
Is card counting illegal?+
No, not in the UK or most jurisdictions. Counting cards in your head uses only information you can legally see and public arithmetic, it isn't cheating or fraud. What casinos can legally do instead is refuse service or ban a suspected counter from playing, since it's a private business and card counting breaches most casinos' terms even though it isn't a crime.
What's the difference between running count and true count?+
The running count is a simple tally, add 1 for every low card (2-6) dealt, subtract 1 for every high card (10 through ace), and do nothing for 7-9. The true count divides that running count by the number of decks estimated to remain in the shoe, which matters because the same running count means a much stronger advantage in a nearly empty shoe than in a fresh one.
Can card counting actually beat the house?+
In the right conditions, skilled counters can turn a small, genuine edge, typically under 1%, by increasing bets when the true count is high and playing perfect basic strategy throughout. It requires real skill, a large bankroll to survive the swings, and a casino that hasn't restricted the rules or shuffled early enough to shut the technique down, which is common today.
Does card counting work for online blackjack?+
Not against RNG-based online blackjack, which reshuffles a virtual deck after every hand, there's no depleting shoe to track. Live-dealer blackjack streamed from a studio deals from a real, physical shoe like a land-based table, so the underlying maths applies, though studios shuffle frequently and use computer vision tracking specifically to make sustained counting impractical.
How long does it take to learn Hi-Lo counting?+
Most people can learn the Hi-Lo values in a few minutes, they're simple, +1, 0 or -1 per card. Getting fast and accurate enough to count silently at full table speed, several cards a second across multiple hands, typically takes regular drilling over several weeks, which is what a speed-based trainer like the one on this page is for.