Blackjack is a popular card game played in casinos worldwide, known for its blend of skill and luck. The objective is to beat the dealer by having a hand value closest to 21 without exceeding it. Numbered cards are worth their face value, face cards (Jack, Queen, King) count as 10, and Aces can be either 1 or 11. Players start with two cards and can choose to "hit" (take another card) or "stand" (keep their current total). Other options include "double down" (double the bet for one more card) and "split" (divide a pair into two separate hands). The dealer must follow strict rules, typically hitting until reaching 17 or higher. Blackjack offers strategic depth, making it a favorite among both casual and serious gamblers.