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Five Worst BlackJack Rules

Quick, can you tell me what are the five worst playing rules for blackjack? If you don’t know them then the next time you play blackjack you might just be bucking higher than normal odds. So let’s review these bummers to be sure you never play in a game that has them.
Blackjacks pay Even Money

This one stinks. Normally the casino pays 3 to 2 when a player gets a blackjack hand (and the dealer doesn’t also have blackjack). Getting paid 1 to 1 may not seem like a big deal but it is because the casino’s edge goes up by 2.3% (ouch).

Normally blackjack games that offer an even money payoff also have several other player favorable rules as a come on. A good example is SuperFun 21, which is offered in many casinos in Las Vegas. The game uses only a single deck of cards with liberal rules such as surrendering anytime including after hitting, doubling, or splitting. But the liberal rules do not come close to negating the 2.3% edge the house enjoys when it pays even money on blackjack hands. The bottom line is be very cautious when a casino only offers even money on a blackjack.
Blackjack pays 6 to 5

Oh come on, no casino would pay 6 to 5 for a blackjack hand you say? Well guess what? Walk up and down the strip in Las Vegas and you’ll find this game all over the place. The come on is that it’s advertised as a single deck game, which usually implies a good game for the player. But getting paid 6 to 5 on a blackjack is a much worse deal than getting paid the normal 3 to 2. How much less? For every $10 you bet and get a blackjack you’ll get paid $3 less. This increases the house edge by 1.2%.

What’s ironic is that these same casinos that offer this 6 to 5 abomination game also offer plenty of multiple deck games with a much lower house edge (partly because blackjacks are paid at the standard 3 to 2). Yet the last time I visited Las Vegas I observed all the 6 to 5 single deck tables packed with players while the multiple deck tables where much less crowded. I finally asked one player who had quit playing the 6 to 5 single deck payoff game why he choose to play it rather than the better multiple deck game. His response was that he thought 6 to 5 was a better payoff than 3 to 2. So much for the math skills of the average blackjack player (which is probably why the casinos in Las Vegas are blazingly getting away with offering this game to clueless tourists).
Doubling Down only on 11 or 10 or just 11

Often you’ll see this rule in single deck games where a player is restricted to doubling on a two card 10 and 11 (or just 11). This means you can’t double down on 9 or any soft hand (that’s not good). The house edge goes up by about 0.7% when you can only double on 11 and by 0.25% when you are restricted to just doubling on only 10 and 11.
Using 8 decks of Cards

Compared to a single deck game, the casino’s edge increases by 0.61% when 8 decks of cards are used. You would need several liberal rules to offset the 0.61% edge to make the game playable. At the minimum make sure the dealer stands on soft 17 and doubling after pair splitting is offered (ideally also late surrender).
Dealer Hits Soft 17

Many casinos (especially on the Las Vegas strip) have changed the dealer rule regarding soft 17. It used to be pretty standard that dealers must stand on all 17 hands (which includes a soft 17 hand). Nowadays, however, more casinos are changing to hit soft 17. That’s not a good change for the player because the casino edge increases by 0.20%. Given a choice you are better off playing where the rules require that dealers must stand on soft 17.

Probably the worse blackjack rule that I ever saw was dealer winning all ties. Yes, I know that’s the way you play it with your buddies when you get together for a friendly game of blackjack and poker. But in a casino, you should never play any blackjack game where the dealer wins ties. The standard casino rule is when your hand totals 21 or less and the dealer ends up with the same total, it’s a tie or push and you don’t lose or win your bet (but remember that a dealer blackjack hand beats a player’s three or more cards 21 hand). By winning tied hands the casino edge zooms by about 9%.

There are two things to keep in mind when you play blackjack. First, there has never been a game with exotic rules that has a lower house edge than the standard game. So before you decide to try a SuperFun 21 or other ‘new’; game you better check the rules.

Secondly, you should always try to pick your games carefully so that the overall mix of rules leads to a casino edge that’s as low as possible for the game you are playing (this of course assumes you know the basic playing strategy – if not, learn it!).

Dan Pronovost showed the effect of each rule on the house edge in his excellent article, Picking the Right Game, that appeared in issue #35 of the Blackjack Insider Newsletter (www.casino.com/newsletter/blackjack/archive/). This article is a good starting point to be sure you understand the impact a rule has on the house edge.

Often casinos will introduce new rules or games in their blackjack pits. An example is the new game Blackjack Switch, which recently had a trial run in Atlantic City and will soon be launched in casinos there and in Las Vegas (it’s also offered on the Internet). In this game you must play two hands and you are allowed to switch the two top cards. That very favorable player rule is offset by this new rule – when the dealer has 22, all player hands of 21 or less push (instead of win). So is the favorable switch rule offset by the very unfavorable push 22 rule? The answer is I don’t know at the moment but I’ve got several blackjack mathematicians working on this as we speak to determine the overall impact on the player (we hope to have it all unraveled in the next issue of the Blackjack Insider Newsletter).

That’s it for now. Stay positive and make sure you know the rules before you play.

By Henry Tamburin

How to Play Blackjack

The game itself is simple. You, the player, attempt to accumulate cards with a numerical total closer to (but not more than) twenty-one than those accumulated by the dealer. If you do so, you win. If the dealers’ total is closer to twenty-one than yours, you lose. Winning hands are paid off at even odds. If you and the dealer both arrive at the same total, the hand is a “push,” and nobody wins. All bets must be made before any cards are dealt, and no bet may be changed once the first card has been dealt.
Each player is initially dealt two cards; they may be face-down or face-up, depending on the rules of the casino. The dealer gets two cards, one face-up and one face-down. The value of the cards is given by their face value except that the ace (A) counts as either 1 or 11 and the 10, jack (J), queen (Q), and king (K) all count as 10.
The combination of an A and any 10 on the first two cards is a blackjack and is an automatic winner (unless both dealer and player have it, in which case it’s a push). A player blackjack is paid at 3 to 2. When the house has a blackjack the player merely loses his bet and not one and a half times that bet. Any combination of cards that exceeds 21 is a bust and a loser. The player always goes first, so if the player’s total exceeds 21 the hand is lost — even if the dealer also busts later. If the dealer busts, all remaining players are winners. The dealer has no options; play is fixed by the rules.
After the first two cards are dealt, the player must decide whether or not to take additional cards based on two pieces of information: the cards held and the dealer’s upcard. This is where the game begins to get interesting. A wide variety of options offer themselves, and unless the player understands the principles of the game there are numerous ways to go wrong. Let’s review the options first; correct play will be discussed later.

Is Blackjack a ?Winnable? Game?

When blackjack first became a casino staple, it was assumed that it was rather like baccarat, where the house, by virtue of the rules determining play, had a statistical edge. All players and students of the game assumed that this advantage existed based on two simple facts. One, the player had to act first. Two, all busts (hands totaling over twenty-one) were losers no matter what the dealer later drew. These two rules seem to give the house an incontrovertible edge.
Conventional began to change in 1956 when a paper by Baldwin, Cantey, Maisel, and McDermont was published in the _Journal of the American Statistical Association_. This paper and a black-jack strategy manual published by Baldwin et al. the following year both attracted very little interest among non mathematicians, but it would prove to be the first step toward determining that blackjack is a “winnable” game.
Edward O. Thorp, a scientist at MIT, did understand the implications of the work of Baldwin and his colleagues and began to ex-amine two elements of the game that were previously unexamined. One, the composition of a deck of cards changes with every card dealt. Two, some deck compositions favor the player and other favor the house. In 1962, Thorp published his now famous book, _Beat the Dealer_, which contained a simple yet profound mes-sage. Unlike dice, roulette wheels, and slot machines, decks of cards have “memory.”
Blackjack, unlike Roulette for example, is a winnable game be-cause of this “memory.” Let’s look at an example. You are sit-ting at the Roulette table and the dealer throws the ball and it comes to rest on the number 9. Now, when he throws the ball again for the next round, what are the odds the ball lands on 9 again? Assuming the wheel is not rigged or the dealer is not trained to “fix” the outcome, the odds of the ball landing on 9 again are exactly the same! Let’s take it a step further. Assume that the ball does indeed land on 9 again – twice more. Now the ball has landed on the 9 three times in a row! What are the odds this happens a fourth time? Exactly the same! There is no statistical reason that the ball should “avoid” landing on 9 again.
Blackjack is different. Let’s look at a similar situation in blackjack. You are at the table with two other players. The dealer deals a 9 to each of the players at the table. Now the odds of dealing another 9 have been significantly reduced. In a six deck game the odds have been reduced from 3:49 to 7:104. This fact alone makes blackjack a winnable game.