Poker is a card game that can be played by two or more players. It is a game of chance and skill in which the players place bets based on their understanding of the odds and their ability to bluff other players. It is a game of strategy and requires the use of math, psychology, and reading non-verbal cues. It is an excellent way to develop critical thinking and interpersonal skills.

A player’s hand is composed of the cards he has in his possession. The hand’s ranking is determined by the rank of its cards (the higher, the better). A full house consists of 3 matching cards of one rank and 2 matching cards of another rank. A flush consists of 5 consecutive cards of the same suit. A straight consists of 5 cards in sequence but different suits. Two pair consists of 2 matching cards of one rank and two matching cards of another rank. And a high card is the highest rank non-matched card.

When a player has the best hand, he wins the pot and all other players must reveal their hands. A player may also raise the stakes after each round. However, he must match the last raise in order to stay in the pot.

If a player cannot meet the previous raise, he must either call or fold. If he calls, he must also reveal his hand in the showdown. Otherwise, he must withdraw from the pot and is no longer in contention for the winnings.