Poker is a card game in which players independently try to assemble the most valuable hand of cards possible. In the process, they compete with the dealer to win cash or chips. While luck plays a large part in the game, skill is also important to minimize losses with poor hands and maximize winnings with good ones.
Depending on the rules of the poker variant being played, one or more players may be required to put an initial contribution into the betting pool, called an ante or blind. These forced bets are intended to create an incentive for players to compete for the pot.
Once the ante/blind bets have been placed, the cards are shuffled and dealt, usually face-down, to each player. After each player has two hole cards, a round of betting begins, starting with the player on the left of the dealer.
A player may choose to raise (add more than the previous bet) or fold his or her hand. The players then reveal their hands and the person with the highest poker hand wins.
If you want to write a realistic, engaging story with a realistic poker game setting, it is essential that you have top-notch writing skills and a thorough understanding of the game. In particular, you must understand the basic rules of the game and how they apply to a story, including tells, bluffing, etc. Moreover, you should know about some of the more obscure variations of poker and be able to write competently about them as well.