Online poker games texas holdem is typically played with small and big blind bets—forced bets made by two players. A dealer button is used to represent the player in the dealer position. Antes (forced contributions by all players) may be used in addition to blinds, especially in the later stages of the tournament. The dealer button rotates clockwise after each hand, changing the position of the dealer and blinds. The small blind is usually half the big blind and is posted by the player to the left of the dealer. The big blind, which is posted by the player to the left of the small blind, is equal to the minimum bet. The blind/ante structure in tournament poker increases at regular intervals as the tournament progresses. Following the completion of one round of betting, the person in the small blind will begin the next round of betting.