Blackjack Theory

Dealer hand Total: ?

Game type Dealer rule Training mode

Demo stats

Optimal play

Round over

Deal a hand

Start a new hand to see basic strategy advice update as the cards arrive.

Advice assumes a conventional casino game with doubling allowed after splits and no surrender.

Probability analysis

If you hit

chance you bust immediately

Dealer pressure

dealer bust chance from upcard

If you stand

win chance after dealer plays out

If you double

win chance after one card

Deal a hand to estimate odds from the unseen shoe.

Basic strategy chart

HHit

SStand

DDouble

SPSplit

Assumptions: 6-deck shoe, selected US or European deal style, dealer soft-17 rule as selected, double after split allowed, no surrender, no insurance or even money. European mode uses no-hole-card dealer play, so some double and split advice is more cautious against dealer 10 or ace. This is a simplified training aid, not gambling advice; it may not be correct for every casino rule set, table situation, promotion, or live shoe composition, and it does not guarantee outcomes.