Poker is a card game that can be played socially for pennies or matchsticks, or professionally for thousands of dollars. It is a game of chance, but it also requires a great deal of skill and psychology.
The rules of poker depend on the variant being played, but there are some standard elements. Usually, one or more players are required to place an initial amount into the pot before the cards are dealt. These are called forced bets and come in the form of an ante or blind bet (or both). The dealer then shuffles the cards and deals each player a hand. These are dealt either face-up or face-down, depending on the game.
Once the cards have been dealt, the first of many betting intervals begins. Players can choose to call the bet, raise it, or fold their hand. The player who has the best poker hand at this point wins the pot.
The highest poker hand is a straight flush, consisting of five consecutive cards of the same rank. The next best hand is a full house, which contains three matching cards of the same rank and two unmatched cards. If two players have identical hands, they tie and share any winnings.