Twenty One's five levels challenge you to beat the AI by one point. At each level you are offered a certain amount and a limited number of games. To pass the level, you must at least not lose the amount entrusted to you; it will be better if, on the contrary, you increase it. Select the chip you want to bet and then deal the cards. You must score 21 one points or at least not exceed it. The winner is either the one who collected the point or the one who has more points. If your result is more than twenty-one, you will lose the game of Twenty One anyway.