The game became known as Blackjack because if a player held a Jack of Spades and an Ace of Spades as the 1st two cards, the player was paid out extra. So with a Jack being a vital card and Spades being black, the game was called Blackjack.
Mchezo akawa anajulikana kama Blackjack kwa sababu kama mchezaji ilifanya Jack ya Spades na Spades Ace ya kama 1 kadi mbili, mchezaji alikuwa kulipwa nje ya ziada. Hivyo kwa kuwa kadi Jack muhimu na Spades kuwa nyeusi, mchezo kinaitwa Blackjack.