Short answer: Blackjack aims to have a hand total closer to 21 than the dealer without exceeding 21. Card values and options such as splitting or doubling are set by the table’s rules.
Card values and the goal
Number cards generally count at face value, face cards generally count as ten, and an ace can often count as one or eleven depending on the hand. A hand that goes above 21 busts. The goal and settlement details should be confirmed in the selected game’s rules.
Player decisions vary by table
Tables can differ in whether the dealer draws on a soft 17, how many times a hand can be split, whether doubling is allowed, and how a natural blackjack is paid. These differences matter. Read the table rules before selecting a bet.
Strategy is not certainty
A decision chart can describe a mathematical strategy under stated assumptions, but it cannot remove variance or guarantee a result. Other rules may make a chart inapplicable. Do not treat past cards or a short streak as evidence that a future outcome is due.
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