ShortstackA stack is short if it is small by comparison to the stack of the opposition, the maximum buy-in, or the current ante. A player possessing such a stack is calso called a shortstack. For example, a player at a table with a maximum buy-in of 100 big bets who has just 20 big bets in his stack is called a shortstack.
The small number of chips has a direct impact on the play. A shortstack cannot undertake moves that are complex or cost-intensive. He can only win as much as he has in his stack, hence, he cannot speculate on hands because his implied odds are insufficient.
In a tournament, a shortstack is under pressure to double or triple his stack as quickly as possible, but he cannot wait too long for a good hand since the ante will quickly devour him.
Independent Chip Model, Tournament, Buy-In