J
Julio88
Guest
The D9 rule in blackjack appears to vary depending on the specific casino or establishment where the game is being played. However, in general, it seems to refer to a rule that limits a player's ability to double down to only certain hands that value 9, 10 or 11. This means that the player cannot double down on any other hand value. It is worth noting that the specifics of the D9 rule may differ depending on the casino or location where the game is being played.