Ask the Wizard: Blackjack - Multiple Hands / Players
Do you change your strategy based on the play of other players at your table? For example, you have players who hit when the dealer has a bust card face up taking the bust cards and therefore the dealer does not bust.
— Star from Ft Worth, USA
Unless you are a card counter, how other players play should not affect what you do. Basic strategy players should stick to the basic strategy no matter how badly the other players play. Other players are just as likely to help you as hurt you. In the end, it makes no difference how they play.
In blackjack and/or in Caribbean stud poker, does it make a difference if you are the only player seated at the table versus if the table is full?
— Patrick from New York, USA
Why do land casinos make you bet more when playing a second hand in blackjack? When playing on line is there an advantage when playing two or more hands?
— Brian from Independence, USA
I think the reason for this is that they don’t want a minimum bet player hogging up two spaces. This will slow down the game and possibly prevent bigger bettors from playing. Not all land casinos have this rule, I think it is more prevalent in Atlantic City, where tables are more crowded, than Las Vegas. Whether online or a land casino there is no advantage to playing more than one hand.
Is it permissible table etiquette to double down with your money (and the risks and rewards are yours) for a fellow player who refuses to double because of lack of money, fear or ignorance? [Actually I did do that for/with a woman who could not double an obvious double hand (I believe 10 against dealer 4) because she did not have enough chips. The dealer was encouraging her to "double for less" although the dealer permitted me to make this player the short term "loan". And I won, ha-ha! If so, could you conceivable turn the house’s edge in your favor?
As long as both players are agreeable then the casino is unlikely to stop you. In some situations it may not be practial because the player may want to take more than 3 cards. However with 10 against 4 the player should never take a fourth card, thus it was a good idea. Although a bit impractical you could always offer to buy the player’s hand and then you play it yourself, if you can agree on a price. My blackjack appendix 9
shows the fair value of all hands. As an example suppose another player had blackjack and the dealer had an ace up. Most players would take even money. You could make money by offering that player more than even money, but less than 103.8%, and then playing out the hand yourself. However don’t extend this offer to a card counter.
Every time I go to the Blackjack games there is a grumpy simple individual, who wants to stone some poor soul for "messing up the shoe.” Is there any truth to this?
— Jim from Las Vegas
In ten years of running this site I steadfastly denied the myth that bad players cause other players to lose in blackjack. However, you are the lucky 1000th person to ask, so I took the trouble to prove it by random simulation. The rules I put in are the standard liberal Vegas Strip rules as follows.
Dealer stands on soft 17
Double on any first two cards allowed
Double after split allowed
Late surrender allowed
Player may re-split to four hands, including aces
Cut card used
First, I had both players follow correct total-dependent basic strategy. Over almost 1.6 billion rounds, the loss of the first player to act was 0.289%, and the second player to act of 0.288%.
Second, I had the first player follow the same correct strategy, and the second player follow the same correct strategy except:
Always hit 12 to 16
Always double 9 to 11
Split any pair
Never soft double
In a simulation of 1.05 billion hands the loss of the first player was 0.282%, and the second player was 11.260%. So the house edge of the basic strategy playing first player was almost the same, regardless of whether the second player played correctly or wildly incorrectly. I hope this puts and end the third baseman myth, but I doubt it. As I have said many times, the more ridiculous a belief is, the more tenaciously it tends to be held.
I follow your 4+ deck Blackjack basic strategy 100% of the time and I always get dirty looks whenever I hit my 12 against a dealer 2 and especially a 3. I don’t know how to explain to the other players in simple terms why what I’m doing in the best thing to do.
— Everett from St. Charles, MO
I feel your pain. You can imagine how bad it gets in Spanish 21, which calls for such plays as hitting 14 against a 3. As long as it is just looks, I would let it slide. If it gets to words, I would say something like, "There are lots of other tables in here." There is no way you are going to convince simpletons like this by trying to explain the odds. The more ridiculous a belief is, the more tenaciously it tends to be held.
There is usually no sound-bite explanation anyway to why one play is better than another. To know why the correct play is what it is, one must either consider every possible way the remaining cards could fall, for both player and dealer, or play out the hand thousands of times, even millions for very borderline hands. The decision with the highest expected value is the one you should take. Only refusing insurance yields itself to being easily explained.