Face Down Cards – cards that are dealt face down.
This is necessary so that up to a certain point they could not see the opponents of the cardholder or all participants of the draw.
The rules of dealing closed cards are regulated in all gambling games. For example, if the Caribbean poker allows you to play two hands, the cards in the second box are not allowed to be opened until the client decides on the first set.
In American blackjack, the dealer immediately puts one closed card and one open card in front of him. In the European version, the croupier dispenses with closed cards.