The card game of poker has many variations, most of which were created in the United States in the mid-1800s through the early 1900s.
The standard order of play applies to most of these games, but to fully specify a poker game requires details about which hand values are used, the number of betting rounds, and exactly what cards are dealt and what other actions are taken between rounds.
The most popular poker variants can be divided into three broad groups: Some common rule variations include: Poker can be played in a mixed game format in which each variant will usually be played for a fixed number of hands or time and then the players will move on to the next game.
The most notable mixed poker variation is HORSE poker, a mix of Texas hold 'em, Omaha high-low, razz, seven-card stud and seven-card stud eight-or-better.
These variants are most often played in home games, usually as part of a dealer's choice format.
The losers of rounds of guts generally match or double the pot, which grows rapidly.
If a player beats their opponent with all five hands, this is called a “Five-O” win.