Single-Deck

The differences between the win rates in six decks and single-deck look quite different from the differences in advantage. Wherever you see a bar pointing upward, that hand is responsible for more gain in single-deck than in six decks. Here we see that Blackjacks are more valuable in single-deck, because they occur at a slightly higher frequency and are less likely to tie with a dealer Blackjack in single-deck. All Pairs occur less often in single-deck than in six decks. This does not matter much for pairs of aces through nines, as they do not occur often. But pairs of Tens are very common. Therefore, we see that six-deck games enjoy substantially more gain from T,T since the frequency of those hands increases with six decks. Single-deck sees a higher win rate in hands 9, 10, and 11 because both the frequency and advantage are higher in single-deck.

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 © 2009 Norman Wattenberger