The very first difference between these card variants is the number of cards you can see. The number of cards involved in the game are different , each player gets 13 cards in 13 cards rummy and each player gets 21 cards in 21 cards rummy game.

Blackjack, also known as 21, is a popular casino card game in which players compare their hand of cards with that of the dealer. To win at Blackjack, a player must create a hand with a higher total than that of the dealer, but without exceeding 21. Make better decisions. Learn the rules of the game before you play.