How does the probability of getting a blackjack change when multiple decks are used?

[Mike_25]

When splitting aces, the odds of blackjack depend heavily on the number of decks the dealer is shuffling. With a single deck, the chances of ten on the second card are highest. But as additional decks are brought in, the odds worsen significantly. In your experience playing multiple deck games, how would you estimate the reduction in blackjack probability when 4, 6 or even 8 decks are in use? And does this alteration in odds substantially impact whether splitting aces remains a useful strategy? I'm interested to read the perspectives of other players who have dealt with this situation.

 

[Crazy_winner]

Single-deck games have a somewhat better chance of producing a Blackjack than do multi-deck games. The reason for this is that since there are fewer cards overall in single-deck games, there is a greater chance of drawing both an ace and a card with a value of ten.

 

[Lazza]

A single deck game has the same probability of producing a blackjack as a multiple deck game, but the effect of using multiple decks is greater when it comes to card counting and the overall house edge.

 

[adams]

The chance of getting a blackjack in a single-deck game is about 4.83%. With multiple decks, like in a standard six-deck game, the probability increases slightly to around 4.75%. Using more decks lessens the impact of removing a single card, making drawing a blackjack a bit easier. However, the effect is minimal, and odds in blackjack are also influenced by factors like rule variations.

 

[James108]

With a single deck, the probability of getting a blackjack is 4.75%. With two decks, the probability is 4.69%. With six decks, the probability is 4.64%. As the number of decks increases, the probability of getting a blackjack decreases.