Pontoon is the all time favorite game of casinos in Australia where it is called Treasury 21. It is a simple arithmetic game played on a Blackjack table. In each deal, the punter's aim is to receive cards totaling more in face value than the banker's, but not exceeding 21, to avoid going ‘bust’ and losing. A 21 consisting of an Ace and a card worth 10 is a Pontoon, and pays extra. Here the banker's Pontoon is unbeatable, as he always wins in the case of equality.