Poker is a family of card games that is played in casinos and private homes all over the world. Almost all versions of the game have one or more rounds of betting. Players make bets toward a pot that is then gathered into a central pot at the end of each round. The winner is the player with the best hand, according to the rules of the game.

Some variants have fixed-limit rules, while others allow players to raise the pot amount. Most games require players to contribute a minimum amount to the pot before they can start betting.

Various kinds of cards are used, including poker chips made of different materials. In some games, the dealer deals cards face-down. This allows a player to see the hidden cards.

Poker has a long history. It is believed that it was first taught to French settlers in New Orleans by Persian sailors. It was later introduced to the U.S. military and was eventually adopted by communities across the country.

Today, poker is played in casinos, poker clubs, and over the internet. Poker is the most popular game in the United States, but it is played all over the world.

There are hundreds of variations of the game. The most popular include draw poker and seven-card stud. Depending on the variation, the player may have to discard some or all of their cards. Some variations also involve the player making a forced bet.