3:2 Blackjack

Originally posted by: David Miller

   Anyone who plays blackjack to win knows about deck penetration and adjusting the amount of their bets according to the number of high and low cards that have been dealt. You don't have to "count cards" to know whether a lot of high cards are due to come out of the remaining cards in the shoe.  If mostly low cards have been dealt in the first 2 hands, it stands to reason that there are high cards waiting to be dealt - there is no reason to know the exact count, just whether low or high value cards have been dealt. It is just that simple.


You can figure out the number of high cards and low cards that have been dealt without, you know, counting them? I've never heard that before.

Originally posted by: David Miller

  When you have 3 or more players playing at one time, you will be lucky if 2 hands are dealt before the shuffle. There is NO WAY the game is "more beatable" than it was when the dealers dealt further into the deck. Ask anyone who understands and plays the game - I imagine that Anthony could/can comment about deck penetration and it's effect on the player's possible result. I submit that the double deck blackjack game with normal deck penetration is a better game than the game offered at the El Cortez- but I am sure that some would argue differently.


It's not a matter for argument. It's simple math. Given equivalent rules, a 3:2 double deck game has a house advantage of approximately 0.22% greater than a 3:2 single deck game. For the basic strategy player, it doesn't really matter what the penetration is. Deeper penetration affords more +EV situations, but a player who isn't counting won't recognize those situations when they come up, so he won't raise his bet or alter his basic strategy.

 

Penetration definitely matters for the counter. I remarked, though that the El Cortez game is quite possibly more beatable now for counters because previously, the intense heat from the pit made any kind of useful bet variation impossible. I doubt there's so much scrutiny now, with only two rounds being dealt. To put it another way, a normal-penetration game with heat from the pit is a worse game for the counter than a poor-penetration game with no heat.

 

A single deck game has such a low house edge off the top that counting, even as limited as those two rounds afford, is still viable.

Originally posted by: David Miller

   Anyone who plays blackjack to win knows about deck penetration and adjusting the amount of their bets according to the number of high and low cards that have been dealt. You don't have to "count cards" to know whether a lot of high cards are due to come out of the remaining cards in the shoe.  If mostly low cards have been dealt in the first 2 hands, it stands to reason that there are high cards waiting to be dealt - there is no reason to know the exact count, just whether low or high value cards have been dealt. It is just that simple.


Uhhhh..."knowing" that a lot of high cards are "due" (a very inaccurate term, but let's go with it for the sake of argument) means that you've been observing previous deals...and noting that a relatively large proportion of low cards have come out.

 

As in, counting cards.

 

If David was counting cards, walking away from this game in high dudgeon was a big mistake. If two rounds are dealt, it's still beatable. If he wasn't counting cards, then walking away to find a worse game somewhere else was likewise a mistake.

 

The "adjustment" that David mentions (if you're counting) includes adjusting the running count to reflect the true count. That means that a high count in a double deck game, all other things being equal, is less advantageous than the same high count in a single deck game (half as advantageous, in fact). It's also considerably harder to reach a high count in a double deck game (and harder still in a shoe game).

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