Poker is a family of card games, betting that shares rules and usually (but not always) hand rankings. Poker games differ, as the cards are issued, as hands May be, whether high or low hand wins the pot in a showdown (in some games, the pot is split between the high and low hands), And betting limits for how many rounds of bets are allowed. In most modern poker games, the first round of betting begins with some form of forced bet. The action will be on the left side. Each player in turn must either with the previous maximum bet or fold, losing all further interest in the hand. A player who matches a bet May also increase, raising the bet. The betting round ends when all players with either of the last bet or folded. If all but one player fold on each round, the remaining player collects the pot without his hands. If more than one player remains in dispute after the last turn, hands and the winning hand takes the pot.

Many poker players are of the opinion that this system differs from betting poker gambling. With the minor exception of the first forced bets, money is only used in the pot voluntarily by a player who, at least in theory, rationally believes the bet has positive expected value. Thus, while the outcome of a certain hand is mostly by chance, the long-term expectations of the players are determined mostly by their actions selected based on probability and psychology.