Poker is a game of chance and strategy, played from a standard pack of 52 cards. It can also be played from multiple packs and a few additional cards called jokers. The highest hand wins the pot.
Before any cards are dealt, one or more players are required to make forced bets, usually either an ante or a blind bet (sometimes both). After these bets are made, the dealer shuffles the cards, and each player is dealt the number of cards appropriate to the specific variant of poker being played.
When the first deal is complete, the players begin to bet in clockwise order, a betting interval, which may vary according to the variant being played. Each player must call or raise the bet by putting into the pot a specified number of chips; or they can drop, if they do not wish to continue betting.
The betting rounds, which are usually several, then continue until all players have either called or folded. If all players have called, the hand is declared as the winner; if all have folded, no hand is declared.
The first bet in each betting interval, the initial bet, is made by the player who is to the left of the button. After that, the next player must place a bet; and so on, until all players have either called or folded. This process is repeated until the end of the round, when all bets have been gathered into a central pot.