<|im_start|>user
How do you play blackjack?<|im_end|>
<|im_start|>assistant
Blackjack or Twenty-One is a casino type game 

Blackjack is the most widely played casino banking game in the world. It uses decks of 52 cards and descends from a global family of casino banking games known as Twenty-One where players bet against the dealer for hands as close to 21 as possible without going over.<|im_end|>
