Card Counting Trainer
A complete school for blackjack card counting. The counting drill deals cards face-up at a speed you control — keep the Hi-Lo running count in your head and enter it when the deck pauses; the trainer scores your streak and pushes the tempo as you improve. The true-count module quizzes the conversion that actually sizes your bets: running count divided by decks remaining, read from a realistic discard tray. A strategy-deviation quiz covers the Illustrious 18 — the index plays where the count overrides basic strategy. Finally the bankroll simulator plays thousands of shoes with your rules, spread and bankroll, and draws the resulting equity curves, hourly EV and risk of ruin, so you can see exactly what a 1-15 spread over a 1% edge really feels like — including the losing months.
Runs 100% in your browser — simulations are computed locally on your device.
Read the full guide to this tool
Notes
- Hi-Lo assigns +1 to cards 2–6, 0 to 7–9 and −1 to tens and aces; a positive count means the remaining shoe is rich in high cards, which favours the player.
- The true count (running count ÷ decks remaining) is what carries betting information: each true point is worth roughly 0.5% of edge, so counters bet small below +1 and spread up as the count climbs.
- Deviations matter less than the bet spread: perfect basic strategy plus counting earns most of the edge; the Illustrious 18 add the biggest remaining chunk.
- Casinos may shuffle early, flat-bet you or ask you to leave — counting is legal but unwelcome. Expected edges are ~0.5–1.5% and variance is brutal.
- Runs 100% in your browser — simulations are computed locally on your device.
- Gambling math is informational only, not betting advice. Gambling involves risk of loss; only play with money you can afford to lose, and only if you are 18+ (or of legal age where you live).
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