Poker is a card game that requires skill to win. The game involves betting and raising the stakes as your hand gets stronger. You also need to read the other players and know how they’re likely to play their cards. Ultimately, the player who makes the best decisions wins. While luck can play a role, over the long term better decisions will make you more money.

To begin a poker game, each player places an ante (the amount varies by game). Then the dealer shuffles and deals each player five cards face up. After the dealing, there’s a round of betting where players can choose to call, raise or fold. The person with the highest hand wins the pot.

The highest hand in poker is a Royal Flush, which contains four matching cards of the same rank and five consecutive cards of the same suit. A straight is five cards that skip around in rank but are all from the same suit. Three of a kind is three cards of the same rank. Two pair is two cards of the same rank, plus another unmatched card.

To decide under uncertainty, whether in poker or in any other area of life, you have to estimate the probability of different scenarios. In poker, this means estimating the probability that other players have strong hands and will raise or fold in response to your actions. This is why it’s important to practice and observe experienced players to develop quick instincts.