One of the tournament types, it refers to a game format where it starts immediately when a certain number of participants gather and continues until there is only one player left.
It's also known as a single-table tournament because six players play at one table.
Once the game starts, no additional players can join, and rebuys are not allowed.
Due to its relatively short playtime and the game starting as soon as players gather, it's suitable for enjoying tournament-style games without much hassle.