Learn
Start at the top if you’re new. Everything below assumes only what came before it.
Part 1 — The game
Never played blackjack? Read this once and the rest of the page will make sense.
The goal isn’t 21
You are playing against the dealer, not the other players. You win by finishing with a higher total than the dealer — without going over 21.
Going over is called busting, and it means you lose immediately, even if the dealer busts afterwards. That single rule is where the casino’s advantage comes from.
19 beats 17. Neither hand is near 21.
What the cards are worth
Number cards are worth their number. Jack, Queen and King are all worth 10 — which is why a deck is full of tens.
The Ace is special: it counts as 11 unless that would bust you, in which case it counts as 1. You never have to choose; it always takes the value that helps you.
Hard hands and soft hands
A hand holding an ace that still counts as 11 is called soft. Any other hand is hard.
This matters more than it sounds: a soft 17 and a hard 17 are the same number but call for completely different play, because a soft hand cannot bust with one more card.
The ace can still drop to 1, so another card can never bust this hand.
Same total, no flexibility — any card above a 4 busts you.
How a round runs
You place a bet. Everyone gets two cards face up. The dealer takes two as well, but only one is visible — the upcard. The hidden one is the hole card.
You act first, then the dealer plays. That order is the whole problem: if you bust, your money is gone before the dealer has to do anything.
You only ever see one dealer card — the upcard — while deciding.
Your five choices
Every hand comes down to these five. Double and Split are the profitable ones — they get more money on the table in the spots that favour you, which is exactly what a counter is looking for.
Which choice is correct is not a matter of feel. It is solved maths, and it is called Basic Strategy.
The dealer has no choices
The dealer follows a fixed rule: draw until reaching 17, then stop. No judgement, no reacting to your hand.
One variation matters — whether the dealer also draws on a soft 17 (ace + six). That is the H17 rule, and it is slightly worse for you than S17. The trainer lets you set both.
16 — the dealer draws again, whatever is on the table.
17 or more — the dealer stops, even against your 20.
What you get paid
A blackjack is an ace plus a ten-value card on your first two cards. It pays more than a normal win — 3:2 — and it is the single biggest reason high cards are good for you.
Watch for tables paying 6:5 instead. That one change costs more than a good counter earns, which is why this trainer defaults to 3:2.
Why any of this can be beaten
Cards are dealt without replacement. What has already gone is gone, so the shoe’s composition drifts as the round goes on — and sometimes it drifts in your favour.
High cards help you: more blackjacks at 3:2, better doubles, and a dealer forced to draw into a stiff hand more often. Low cards help the dealer.
Counting is nothing more than keeping track of which way the shoe has drifted — and betting more when it favours you. That is the next chapter.
A shoe rich in these pays you 3:2 more often — and busts the dealer more often too.
Part 2 — Counting cards
The edge itself. Tap any topic to open it.
The Basics
You keep a simple running tally as the cards come out. When lots of high cards are still to come, the odds tilt in your favour — so you bet more and adjust a few plays. It is a skill of attention and math, not cheating, and it is perfectly legal.
Read the full chapterEvery card gets a value: low cards 2–6 = +1, middle cards 7–9 = 0, high cards 10, J, Q, K, A = −1. Add them up as cards appear — that total is your Running Count. A high positive count means many high cards remain — good for you.
Read the full chapterThe Running Count alone isn’t enough — a +6 with six decks left is weak, but +6 with one deck left is strong. So you divide: True Count = Running Count ÷ decks remaining. The True Count is your real edge, and it’s what drives both your bet and your deviations.
Read the full chapterStrategy
The mathematically best play for every hand — hit, stand, double, split or surrender — assuming you are not counting. Learn this first: it’s the foundation, and it already cuts the house edge to almost nothing. The Flashcards mode drills it hand by hand.
Read the full chapterWhen the count runs high or low, a handful of plays change from Basic Strategy. Classic example: normally you Hit a hard 16 vs a dealer 10 — but at a True Count of 0 or higher you Stand. These count-based changes are where the extra edge comes from.
Read the full chapterOf all the possible deviations, most of the value comes from a small set: the Illustrious 18 (the 18 most valuable playing deviations) and the Fab 4 (the 4 most valuable surrender deviations). You don’t need to memorise the names — the Flashcards “Deviations” level teaches them directly as situations.
Read the full chapterBetting & the Shoe
You bet small when the count is low and big when it’s high — that gap is your bet spread. Almost all of a counter’s profit comes from getting more money on the table when the odds favour you. A 1–16 spread is a common professional standard.
Read the full chapterTo turn the Running Count into a True Count you must judge how many decks are left — by eye, from the thickness of the discard tray, just like at a real table. It sounds hard but becomes fast with practice. That’s exactly what the Deck Estimation mode trains.
Read the full chapterFrequently asked questions
Is card counting illegal?
No. Counting cards is thinking about the cards you have seen, and no law anywhere forbids that. What casinos may do is refuse to let you play — a casino is private property. Using a device or a hidden helper is a different matter and is illegal in most places. This trainer teaches the mental skill only.
How long does it take to learn Hi-Lo?
Most people can keep an accurate running count on a single deck within a week of daily practice, and reach table speed — a card every second or less, with true-count conversion and basic strategy running alongside — in one to three months. The hard part is not the counting; it is doing it while everything else is happening.
Which counting system should a beginner use?
Hi-Lo. It gets about 97% of the value a perfect system could give, it is a single level of +1 and −1, and every serious team uses it. Multi-level systems add a fraction of a percent in return for much more effort and more mistakes.
How big is a card counter's edge?
Small. A good counter with a solid bet spread at decent rules averages an edge of about 0.5 to 1.5 percent over the game as a whole — with brutal short-term swings. It is a grind measured over thousands of hands, not a way to beat a casino in an evening.
Do I have to memorise every card that has been played?
No. The count is a single number that goes up and down by one. You never remember individual cards, only the running total and roughly how many decks are left.
What bet spread should I use?
At six decks, a spread of 1–8 to 1–16 is the professional standard: one unit at a true count of +1 or below, doubling with each point, capped at eight to sixteen units. Anything narrower gives away most of the edge; anything wider draws attention.
Does this trainer involve real money?
No. Every hand is simulated. The trainer is an educational tool for basic strategy and Hi-Lo card counting; there is no gambling, no deposits and no payouts.
The Training Modes
Speed Drill
Keep the Running Count as cards flash by — build raw speed.
Flashcards
Decide the correct play for every hand, plus count-based deviations.
Bet Spread
Pick the right bet for the count at realistic tables.
Deck Estimation
Judge the decks remaining from the discard tray.
Casino Session
Put it all together in a realistic multi-seat session.
Ready to make the count automatic?
Everything above becomes reflex with practice. Start with the free drills — no card needed.
Start free →