Blackjack is a casino game involving just a deck of cards. The aim of the game is to get as close as possible to a hand worth 21 points – but go over and you're out!
Number cards are worth their face value, picture cards are worth 10, and an ace is worth either 1 or 11 depending on your other cards. Players are initially dealt two cards and can either choose to hit (receive another card) or stick (submit their current hand).
Players face off against the dealer, who has one card face down and one face up. When all players have chosen to stick or are out (having a hand over 21), the winner is the one with a hand closest to 21.
Why am I telling you about blackjack? Because we're going to make a blackjack ...