Poker is a card game where players place chips or cash in the pot to compete for a winning hand. The game has several rounds of betting and a player can fold (exit the round), check (not put any money into the pot), call (match a previous player’s bet), or raise (bet a larger amount than a previous player’s bet).

A key part of a winning poker strategy is knowing when to play a hand and when to fold. A good rule of thumb is that a player should only bet or raise when they have the best hand or they can force inferior opponents to commit their remaining stack. This is especially true when playing in a multi-player game.

One of the most important aspects of poker is learning to read the players at your table. This is accomplished by watching the way they act and reading their body language. For example, if an opponent makes a quick action it indicates that they have a weak or bad hand, while a long contemplative pause before they make a bet or raise usually means they have a strong or good hand.

The game of poker has become an intensely competitive field, dominated by skilled professionals who use mathematical models and rigorous analysis to optimize their play. These GTO strategies have shifted poker from an intuitive game of feeling and chance to a highly organized and formalized set of movements that must be learned by each new player.