Poker is a card game where players take turns betting and dealing. Each round starts with a bet from the left, and all bets are gathered into a central pot. At the end of the round, the player with the best hand wins the pot. Each player gets one card from their hand, and four more from the table.

In most variations of the game, players are given a certain amount of money to buy into the game. These bets must have positive expected values, and they are placed for different strategic reasons. As in any game, luck plays a role in the outcome of a poker hand. However, player action, psychology, and game theory help determine the long-term expectations of poker players.

While there are many theories about how the game started, most agree that it evolved from a game played on a riverboat. Some think the game originated in Persia, while others believe that it came from a version played in French during the seventeenth century. Poque grew in popularity as a new version of the Spanish game primero, and it eventually reached the New World through French settlers.

Each round of poker has a dealer. This person is responsible for shuffling the deck and dealing out cards to players. The dealer can be another player, or a non-player. The dealer takes turns dealing the cards to the players. Each player takes turns as a dealer, and a dealer chip is used to designate the dealer during each round. After each round, the dealer passes the dealer’s chip to the next player. Certain betting rules vary depending on who is the dealer.