It should be noted that the six-card chart has some impossible situations involving five aces. Microgaming also does not allow doubling on 8. They may also be used under the Microgaming rules, except the player should not double on 11 or split eights, against a 10 or ace, because the dealer does not peek for blackjack under the Microgaming Classic Blackjack rules. The following tables are appropriate for the Boss Media rules. Using the composition dependent strategies on this page will lower the house edge by 0.04%, or to be specific under the Boss Media rules the player will have an 0.1541% advantage. With three or more cards the strategies are the same. The following tables are the composition dependent basic strategy, which is the best play based on the exact composition of the player's hand. However with a 10 and 3 against a dealer 2 it is better to hit. For example, all things considered it is better to stand than to hit a 13 against a dealer 2. However sometimes, especially in single-deck, there are exceptions according to the exact cards in the player's hand. The total dependent basic strategy shows the best play based on the total of the player's cards. These strategies can be found in my Boss Media and Microgaming reviews. Using the ordinary total-depenendent basic strategy the player advantage under the Boss Media rules is 0.11%, and under the Microgaming rules the house edge is 0.13%. This page is based on the defunct Boss Media blackjack rules, as follows: At one time, when I created this page, you could find such rules at some Internet casinos. As far as I know the number of land casinos in the world with these rules is zero. This appendix shows the composition dependent strategy when a single deck is used and the dealer stands on a soft 17.

Rummy (Blackjack variant popular in Costa Rica).

21: Details on the Wizard's Simple Strategy.

20: Blackjack doubling strategy when doubling after splitting aces is allowed.

19: Blackjack splitting strategy when a back-player is betting.

18: Basic strategy exceptions for three to six cards.

16: Basic strategy when dealer exposes both cards.

15: House edge using total-dependent vs.

13: Probabilities in the first four cards.

11: Value and strategy for 678 and 777 bonuses.

9: Composition-dependent expected returns for 1 to 8 decks.

5: Infinite deck expected return by player hand and dealer upcard.

4: Blackjack standard deviation details.3c: Exceptions to single-deck H17 basic strategy.3b: Exceptions to double-deck S17 basic strategy.3a: Exceptions to single-deck S17 basic strategy.2b: Probabilities of dealer blackjack before peek.2a: Probabilities of dealer blackjack after peek.1: Total dependent expected return table for an infinite deck.

Boss media blackjack multideck