In some casinos, the rule that placing chips equal to or greater than half the normal bet amount beyond the amount required to call constitutes a commitment to raise the normal amount. For example, in a game with a $4 fixed limit, a player facing a $4 opening bet who places $6 in the pot is deemed to have raised, and must complete his bet to $8. Compare to "full bet rule". See Public cardroom rules and "all in" betting.