Poker is a card game played in many variants with forced bets (ante and/or blind) and where the best hand wins the pot. It is considered to be the national card game of the United States and its rules, history, and jargon are part of American culture. It is a table game, played in private homes, clubs, and casinos as well as at some international events and over the Internet.
After a player is dealt cards, they must place an ante into the pot before betting takes place. Players may bet in turn on their hands. Once a player makes a bet, they must either call it or raise it by placing the same amount of chips into the pot as the last player.
The highest-ranking hand is a royal flush, consisting of the 10, Jack, Queen, King and Ace of one suit in sequence or rank. A straight contains five consecutive cards of the same suit, excluding the Ace. Three of a kind is three cards of the same rank and two other unmatched cards. Two pair is two cards of one rank and two cards of another, and a single unmatched card.
During the course of a hand, it may be necessary to discard cards and receive replacements. During this time, the remaining cards are shown to the table and the winner is declared. If a player is all-in, they cannot win the main pot but are eligible to win the side pots to which they contributed.