Probability of Getting a Blackjack
A natural blackjack is an ace and a ten-value card in the original two-card hand; drawing to 21 or making 21 after a split normally does not qualify for its premium payout. Natural frequency depends on deck composition and any known removed cards. The guide derives the fresh-pack probabilities, explains how remaining aces and tens change them, and compares 3:2 with 6:5. An average of roughly one natural per 20 to 21 hands is not a schedule: a losing run does not make a blackjack due or justify raising the next stake.
