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The free blackjack card-counting & strategy trainer
The Card Counting is a gamified way to learn how to count cards and play mathematically perfect blackjack. Drill the Hi-Lo, KO, Hi-Opt I and Omega II counting systems, practice the running and true count with timed checkpoints, and master basic strategy — every hit, stand, double, split and surrender — with instant feedback and the reasoning behind the correct play. Level up to unlock count-based deviations (the Illustrious 18) and a realistic live table where the count drives your bet sizing. Free, no download, and it works on desktop and mobile.
Card counting, explained
Is The Card Counting free to use?
Yes. Every drill — the card counting trainer, the basic-strategy decision trainer, and the live table — is completely free and runs in your browser. You can play as a guest with no account, and optionally create a free account to sync your progress across devices.
Which card counting systems can I practice?
You can train four systems: Hi-Lo (the balanced classic), KO (Knock-Out, an unbalanced count), Hi-Opt I, and the level-two Omega II count. Additional systems unlock as you level up.
What is the Hi-Lo card counting system?
Hi-Lo assigns +1 to low cards (2–6), 0 to neutral cards (7–9), and −1 to high cards (10, J, Q, K and Ace). You keep a running count as cards are dealt, then divide by the decks remaining to get the true count, which tells you when the shoe favors the player.
Can I learn blackjack basic strategy here?
Yes. The decision trainer deals real hands and grades every hit, stand, double, split and surrender against rules-accurate basic strategy, explaining the correct play. A full strategy chart that updates with your table rules is always one tap away in the reference.
Do I need to download anything or create an account?
No download and no account required. The trainer works instantly on desktop and mobile browsers. An account is optional and only used to sync your XP, streaks and stats across devices.
Does it teach card counting deviations and index plays?
Yes. As you level up you unlock count-based deviations (Illustrious 18 and Fab 4 style index plays) in the decision trainer, plus a realistic live table where the count drives both your bet sizing and your play.