Poker is a game of chance, played by players seated in a room with a dealer. Each player has an ante, an initial amount of money they must contribute to the pot before the cards are dealt.
Each round of betting, each player must make a bet, call (match the previous bet) or raise (add more money to the pot). When all the players have made a bet and no one has called, the hand is finished.
A hand of poker is ranked according to its frequency in mathematical terms; that is, the more unusual a hand is, the higher it ranks. The lowest possible hand is 7-5-4-3-2 in two or more suits, but this ranking may be changed by rules of the specific variant being played.
The game of poker is played in a series of rounds of betting, with the last round of betting leading to a showdown where all the hands are revealed. Each player is required to place the number of chips that matches the total staked by the previous bettor in the pot, as specified by the poker variant being played.
Bluffing is a technique in which a player bets strongly on a weak hand to induce opponents with superior hands to fold. It is a form of deception and is often used by professional poker players.
The position of a poker player, or his betting strategy, determines his chances of winning. Generally, the more experienced a poker player is, the better his position will be. This is because in many cases, position gives him more bluff equity, meaning simple, cheap and effective bluffing opportunities.