A short-handed ring game or tournament format. Unlike full ring games, the maximum number of seats is limited to 6 players. At online poker sites, 6-max tables are very popular, much more so than full ring.
EXAMPLE: “I always encounter maniacs at the table when I am playing 6-max cash games online.”
Probably one of the most notable differences in how 6-max cash games will play is that there will be a lot more 3-betting that takes place.
The reason for this is that the vast majority of 6-max players are raising with a much wider range of hands which can’t continue against a three-bet.