The foundation of every winning player. A hand is dealt; choose the mathematically correct play for the current rules. Perfect basic strategy cuts the house edge to ~0.5% before you ever count a card.
Keys: H hit · S stand · D double · P split · R surrender · Space/Enter next
Everything in one place: a live multi-deck shoe you play for (virtual) money. The count runs as cards come out, the app suggests a bet off the true count, and an optional coach flags any deviation from correct strategy. Bankroll and the shoe persist across hands until penetration triggers a shuffle.
Cards flash one at a time. Keep the running count in your head using the selected system, then enter it at the end. Speed and system are adjustable in Rules.
The running count only matters relative to how many decks remain. True count = running count ÷ decks remaining. This is the number that drives betting and deviations. Drill the division until it's instant.
At high or low true counts, the correct play changes. These index deviations are where most of a counter's added edge comes from. Given the hand and the true count, choose the correct action.
The number is the true count at which the play flips. "≥" means take the deviation at that count or higher; a negative index means stay on the deviation until the count drops below it. These indices are for the Hi-Lo system — other systems have their own tables.
Point your camera at the table and keep the count hands-light. The vision layer does what a browser can do reliably — detect when a card is in frame and read its red/black colour (which the Red 7 system needs) — while the app runs all the count, true-count and bet-sizing math. You tap each card's rank on the keypad (one tap); reliable in-browser rank OCR isn't solvable without shipping a big ML model, so rank stays a confirm, with an optional beta auto-guess.
Grant camera access when prompted. Everything runs on-device — no video ever leaves your browser. No camera? The keypad and count still work in manual mode.
Model a counting session. Set your rules, bet spread, penetration and bankroll, then run a Monte-Carlo simulation to see expected value, bankroll swings, and risk of ruin. This is a statistical model of the count-driven edge — real results vary.
Live for your current rules (). Columns are the dealer's up-card; rows are your hand. Study these until the trainer above is automatic.
Everything is stored locally on this device — zero telemetry. Keep your accuracy above 95% across every mode before you take the count to a real table.
Trainer and chart update instantly to match.