Poker is a card game in which players place bets and show their cards at the end of the hand. The aim is to win a pot consisting of all the money that has been bet during a hand. The player with the highest ranked hand wins the pot.

Each player starts with two cards and may raise, call or fold during a betting interval. If a player calls, they must put in as many chips into the pot as their predecessors, or more, depending on their strategy. Players may also bluff, or pretend to have a good hand, to try to make opponents believe that they have a better one than they actually do.

After the flop, the dealer reveals five more community cards. This can change the probability that a player has a winning hand and should be taken into account when deciding on a bet size.

The highest hand is the Royal flush, which consists of a 10, Jack, Queen, King and Ace of the same suit. It can be tied or beaten by a straight flush.

In most games, chips are used instead of cash for a number of reasons: they’re easier to stack, count, keep track of and change, but the main reason is that they represent a smaller amount of money than would be required if using cash. Chips are often different colors to indicate their value, and most players have a set of denominations that they use.