21 Cheater

Drill blackjack basic strategy and card-counting deviations until they are automatic. Every hand explained with real odds. Free, no ads, works offline.

Play every hand like the math says.

21 Cheater is a blackjack strategy and card-counting trainer. It deals you real hands as flashcards and drills the right play until you stop having to think about it. Then it tells you why.

DRILL EVERY DECISION • Hard totals, soft hands and pairs, dealt as flashcards • Hit, stand, double, split and surrender, graded instantly • Set the table rules you actually play: decks, dealer hits or stands on soft 17, doubling after splits, surrender

EVERY HAND EXPLAINED Tap "Why?" on any hand to see the dealer's bust rate for that upcard, what your hand can realistically become, and the expected value of every option, so you understand the play instead of memorising a chart.

LEARN TO COUNT • Hi-Lo true count deviations: the Illustrious 18 and the Fab 4 • Insurance at +3 and the extended index set • Hands are dealt near each index so you are tested on both sides of the line

FIX YOUR LEAKS • Accuracy, streaks and speed tracked by hand type • Every miss is recorded, and weak-hand mode keeps dealing the hands you get wrong until they stick • Full strategy charts for your rules, with count deviations marked

BUILT ON THE MATH The strategy tables come from an exact expected-value calculation over a real six-deck shoe, then checked cell by cell against the published charts.

Free, with every feature included. No account, no ads, no tracking, and it works fully offline.

21 Cheater is a training tool for learning correct blackjack play. It involves no real-money gambling, no wagering and no virtual currency, and it does not promise winning results.