Blackjack is a popular casino game where the goal is to get a hand total closer to 21 than the dealer without going over. Players are dealt two cards to start and can choose to "hit" or get additional cards to try and improve their hand, or "stay" by keeping the cards they have if they think they are close enough to the dealer. The dealer must hit on 16 or less and stay on 17 or more, according to set rules, to give players a mathematical edge in trying to beat the dealer's hand.

1. The Odds
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