Beating The Casino At Blackjack

Play Online Blackjack and learn how to play Blackjack games online. ⭐ Find the best Blackjack Games and earn consistent bonuses at CasinoTalk. Golden Nugget Casino Virgin Casino Tropicana Casino Borgata Casino DraftKings Casino More Casino Caesar’s Casino Harrah’s Casino Pala Casino Bet365 Casino. Roulette Prediction Software Helped me win over $4000Online Casino 13 day Winning Streak, Robin-hood Stocks Updates and Bitcoin Update Tip me some BitCoint. Beat The Casino BLACKJACK With TOP Strategy Wilkinson, Shawn on Amazon.com.FREE. shipping on qualifying offers. Beat The Casino BLACKJACK With TOP Strategy. Abstract Blackjack is the only game offered by casinos, where it is proven that players can beat the dealer on the long term. Many books and articles have been published about this theme, however most of them are written to make you lose money.

The Random Number Generator (RNG) is at the heart of the modern online gambling industry and is prevalent in all online games, blackjack included. The RNG’s purpose is to ensure random, i.e. unpredictable outcomes, guaranteeing fairness for everyone involved.

Blackjack is by far the only casino game where players can turn the tables in their favor through the implementation of advantage play techniques such as card counting. This is possible because blackjack is a game of dependent events, meaning that previous outcomes affect the odds of future outcomes. Players use the knowledge of past cards dealt to make better informed playing decisions about the hands to follow.

Is this the case in online blackjack variations that run on RNGs, though? Rather than having a human dealer to shuffle and randomize the card order, online blackjack uses algorithms and mathematical formulas to ensure each card that appears on the virtual felt is dealt at random. This prevents the games from showing bias toward the dealer or the player.

For years, gambling buffs have speculated as to whether or not such games are truly random and unbeatable. Some swear by the unpredictability of randomly generated online blackjack while others believe the games are exploitable.

Here at SuperCasinoSites, we give you the full lowdown on all you need to know about Random Number Generators in online blackjack as well as an answer to the question are such games beatable or not.

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The RNG and How It Works?

The RNG made its entry into the gambling industry as a new way to operate slots. Slot machines previously had physical reels that rotated to determine which symbols would eventually appear and potentially create winning combinations.

Slots gradually developed into more complicated games with multiple paylines and special features. The need to introduce a new way of ensuring random outcomes arose. Physical space was limited on old-fashioned reels and did not allow for the ever-increasing number of symbols and winning combinations in advanced slots.

It is this need that led to the introduction of the Random Number Generator. The RNG is a built-in program that relies on mathematical computations to generate fully random events. Frequently implemented in scientific simulations, it also found its way into the gambling industry with the rise of online casinos.

The RNG can be used to simulate random independent events such as the roll of the dice, the spin of a roulette wheel or the flip of a coin. In the context of online blackjack, the RNG shuffles the cards, ensuring every single hand is randomly dealt and has an unpredictable result.

The software achieves this by generating lengthy strings of random numbers. It has no knowledge of previous results and lacks a predictable pattern. The implementation of RNGs is essential when it comes to ensuring fair and unbiased online casino games, whether it is blackjack, roulette, slots or any other game with an element of chance. They are also used in brick-and-mortar venues for electronic roulette and blackjack, keno, and video poker.

True Random and Pseudo-Random Number Generators

There are several types of RNGs, the first one being the True Random Number Generator (TRNG) which relies on some external input to spit out random results. The TRNG is significantly more expensive to maintain. It is mostly used in the field of cryptography where its main purpose is to spew random cryptographic keys to transfer data safely.

The vast majority of online casinos rely on the so-called Pseudo-Random Number Generators (PRNG). Unlike the TRNG, the PRNG is deterministic and uses complex algorithms to produce unpredictable results in casino games like blackjack. Let’s have a more detailed look at the differences between these two main types of RNG.

One-to-One Comparison between TRNGs and PRNGs

QualitiesPRNGsTRNGs
Level of efficiencyHigh efficiencyPoorer efficiency and fewer numbers produced
Deterministic or non-deterministicDeterministicNon-deterministic
Periodic or non-periodicPeriodicNon-periodic
Suitable applicationsModeling and SimulationData encryption, random sampling, casino games, draws, and lotteries
Pseudo-Random Number Generators (PRNG)

True Random Number Generators (TRNG)

TRNGs rely on different natural phenomena or external sources to produce random numbers. To use a simple example, suppose you place 1,000 microphones in multiple noisy areas worldwide. You can use their combined sound output for the purpose of randomization. The TRNG will use these obviously unpredictable random sounds and translate them into strings of numbers.

This type of RNG lacks a computer algorithm to make computations, which means the numbers its spews are indeed an unpredictably jumbled mess. The TRNG extracts random numbers from physical phenomena such as the movements of a computer mouse, keystrokes, radiation waves, and atmospheric noise.

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Beating The Casino At Blackjack

TRNGs are also known as Hardware Random Number Generators because they use hardware transducers to transform certain aspects of physical phenomena into electrical signals. This physical output is then converted into random digital numbers with the help of analog-to-digital conversion systems.

There are many ways to achieve absolute randomness but most TRNGs usually rely on external sources such as radiation waves. One great example is the HotBits service which creates random numbers by timing the decay of consecutive radioactive pairs, an inherently unpredictable process. This information is detected and fed into a computer straight from a Geiger–Müller tube.

Atmospheric noise can also be used for this purpose and so can background noises like those in office buildings or laboratories. In the second case, you will have to watch closely for discernible patterns as those can hurt randomness.

Another cool example of a highly functional TRNG is Silicon Graphics’ lavarand generator. It extracted random data from snapshots of the shapes made by the floating material in lava lamps. The data was then used to produce truly unpredictable seeds for a Pseudo-Random Number Generator.

Regardless of what physical phenomenon is implemented for the generation, the TRNG is non-deterministic, which means the number sequences it produces cannot be recreated, intentionally repeated, or predicted in any way.

With that said, certain number sequences can repeat themselves several times but this repetition happens entirely by chance. As for efficiency, TRNGs often lack in this department. Unlike PRNG, they require more time to generate numbers.

Pseudo-Random Number Generators (PRNG)

Many online blackjack variations run on the so-called Pseudo-Random Number Generators (PRNGs) to give randomness a kick. Rather than relying on completely unpredictable physical phenomena, the PRNG uses complex algorithms and computations based on a predetermined set of rules.

The difference here is that the PRNG does not necessarily require an external input to produce random outcomes. All they require is a fixed algorithm and seed numbers to kick off the process of random number generation. Each random number corresponds to a particular card value and suit.

The PRNG is highly efficient at its task because it is capable of producing very long strings of numbers every millisecond. Unlike TRNGs, the PRNG is deterministic, which is to say it can reproduce a specific number sequence at a later date if need be. It is also periodic in the sense that number sequences, no matter how chaotic they appear to be, will sooner or later start to repeat themselves.

It makes sense this periodicity is an undesirable trait in the context of online gambling games such as blackjack. It takes away from the unpredictability of the hands’ outcomes. This renders online blackjack games theoretically exploitable.

In practice, though, the period of repetition of sophisticated casino PRNGs is extremely long and involves billions of hands. This fact alone prevents players from detecting any patterns in the outcomes whatsoever.

The casino software communicates with the PRNG each time it must reproduce a random result. The PRNG then generates a number and feeds it back to the software. Each number is related to a potential outcome or card value and the software displays it accordingly.

Assume, for instance, you are playing blackjack in a landbased casino and you choose to hit. The dealer will simply draw the next card from the top of the deck or shoe. This is not what happens in online blackjack since here cards are not dealt from a “real” shoe.

The casino software would simply instruct the PRNG to generate an arbitrary number, which will determine the value of the card you are dealt next. This process repeats itself after every single hand. Once you finish a round, the discards are reintroduced back into the virtual shoe and reshuffled. In essence, you are always playing from a fresh and therefore, neutral shoe.

The table below is a one-to-one comparison between Pseudo and True Random Number Generators.


Measures Taken to Ensure Fairness in RNG-Based Blackjack Games

Online blackjack utilizes Random Number Generators in place of dealers, which causes some players to question the authenticity of the games. Are they rigged in favor of the house or not? One typical scenario is when a player goes through several hundred hands, loses half or the majority of them, and quickly jumps to the conclusion the game is rigged. It seems the virtual dealer always manages to outdraw them no matter what upcard they show.

The trouble is this scenario is not all that uncommon in gambling, even if you play games like blackjack which combine elements of skill, strategy, and chance. The above-mentioned reasoning is a classic case of confirmation bias.

Us humans have the tendency to look for, interpret and sift out information in a way that reinforces our prior individual beliefs. Some players’ line of thinking is “I am losing a hand after hand so the game most definitely is rigged against me!”. However, a sample size of several hundred or thousand blackjack hands is hardly sufficient when it comes to drawing any such conclusions.

We would like to point out honesty and fair play are not something you should worry about if you play blackjack at reputable, licensed, and properly regulated online casinos. Here is why:

Certificate From the Testing Agency

Tests and Evaluations of the RNGs

Tests and evaluations of the RNGs used in blackjack games are performed regularly to make sure the software works efficiently. The available blackjack variations undergo frequent audits by third-party testing companies like eCOGRA, Gaming Laboratories International or Technical Systems Testing.

These are all independent auditors to prevent any conflict of interest. The audits assess the games’ RNGs, using sample sizes that involve millions of blackjack hands. This is the only way to determine whether the outcomes of a given game add up to its built-in payout percentage or not.

Certificate From the Testing Agency

Once an online casino passes the audits successfully, it is granted a certificate from the testing agency to post on its website. This badge of approval indicates the blackjack variations, along with all other available games, are random and therefore, fair. Moreover, online gambling operators are expected to report the results of these audits, along with their games’ payout percentages, to their regulators. If something is amiss, the casino faces serious repercussions.

Randomness in the Blackjack Games

Finally, randomness is of utmost importance for casino operators as well. It preserves the integrity of the blackjack games and ensures the casino generates sufficient expected value to continue operating. Remember you are already playing against the house at a small disadvantage, roughly 0.50% in blackjack games with more favorable rules.

There is no need for online casino operators to cheat you and risk losing their licenses in the process. They have already secured their cut from the virtual blackjack tables thanks to the built-in house edge. Casinos face a heavy financial penalization and license suspension if an audit determines their blackjack games are rigged.


The Attributes of Exploitable Blackjack Games

Now that you have understood what the RNG is and how it is implemented in online card games, we shall return to our original question, namely “Can you beat the RNG in online blackjack?”. And more particularly, is this feat achievable through the implementation of techniques like card counting. To answer this question, we must first examine the attributes of profitable, i.e. beatable, blackjack games.

Good Penetration

Favorable House Rules

To begin with, you need to find blackjack variations with favorable rules that reduce the house edge enough so you can beat the game. Some of the things you need to consider in advance include the payouts for blackjacks, the number of decks, and the doubling and splitting rules.

The more liberal the rules are, the lower the house edge becomes. The rules of some variants are poor enough to render the games unbeatable. Other rules like Late Surrender are favorable to players and decrease the casino advantage.

Games that offer reduced payouts of 6 to 5 for blackjacks have considerably higher house edges and should be avoided at all costs. Luckily, the majority of online blackjack variations pay for naturals at standard odds of 3 to 2.

Good Penetration

The second attribute of beatable games is good enough deck penetration. For the uninitiated, the term designates how deep the dealer would deal into the shoe before reshuffling the cards. The deeper the penetration, the more information a card counter gets as to what cards remain to be dealt.

The main issue with RNG-based blackjack is that it gives advantage players no penetration whatsoever. This renders techniques like card counting completely useless. RNG blackjack is equivalent to live-dealer games where Continuous Shuffling Machines (CSMs) are used. The software automatically reintroduces the discards into the shoe and reshuffles everything after every single hand. This is an instant put-off for versed blackjack players.

It is impossible to beat a game where the cards are shuffled after each round. To use card counting to your advantage, you need good enough penetration. An example of adequate penetration is a six-deck game where the dealer shows you around five decks before reaching the shuffle card.

With RNG-based games, you start each round from a neutral, newly reshuffled shoe. Respectively, you base your playing decisions on limited information since you only get to see the cards dealt to your hand and the upcard of the virtual dealer. The best you can do against the RNG is stick to perfect basic strategy, in which case, you are still playing an unbeatable game with negative EV.

Hands Played per Hour

Speed is a double-edged sword when it comes to online blackjack. RNG games play at an exceptionally fast speed, which may appeal to players who prefer greater dynamics. Since you play against the software, there are no other players at the virtual table to slow you down while making their decisions.

The main trouble here is this increased dynamics can be extremely costly in the long run because you end up playing significantly more hands per hour than you would in a traditional landbased casino. There is no natural pause in the game for reshuffling, either. The RNG knows no rest, tirelessly reshuffling the virtual shoe round after round.

Consequently, you play a greater number of hands at a disadvantage, which ultimately causes you to lose more money to the house edge in the long term. Each result is unpredictable and entirely independent from the rest. Every round starts from a neutral shoe that favors neither the player nor the virtual dealer.

You can benefit from playing more hands per hour only if you count cards in a game with decent penetration and this is not something RNG-based blackjack offers. Here, the more you play, the bigger your hourly losses will get.

Conclusion

Some players assume that Pseudo-Random Number Generators (PRNG) in online blackjack are beatable due to their determinism and periodicity. They reason such games are exploitable because sooner or later the sequence of numbers will begin to repeat itself.

While it is theoretically possible to use this “pseudo” randomness to your advantage, very few people are capable of achieving it in practice. The algorithms in RNG-based blackjack are simply way too sophisticated so predicting the outcomes of the hands borders on the impossible. Furthermore, the software undergoes regular audits. Rigged or hackable blackjack games will never slip through the net during testing.


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Blackjack odds are percentage figures which represent your probability of losing or winning a hand. They can also represent the house edge or their profit margins as well. Usually probability odds don't mean much on the short term, but they clearly average out in the long term and this is why the casinos always win over the long term.

We decided to make a few tables and charts of the most common blackjack probability odds for various scenarios and situations found while playing blackjack. The most important odds percentage represents the dealer's edge in the game. This is the long term advantage that they have which will eventually take your money away. Blackjack is actually one of the most popular games in the casino and also has some of the lowest odds of all the casino games, except casino craps of course. Generally their edge ranges from 1% to 15% depending on what variation of blackjack you are playing.

How to Beat the Casino House Odds

There is one feature that makes blackjack more desirable than any other casino game. There is actually a way to beat the house edge by increasing your odds. In fact, your probability odds in blackjack can be increase to the point where you would actually be making the profit in the long term, essentially turning the casino into a personal ATM. This practice is known as card counting and casinos don't like this because they know they will be losing money.

Blackjack

Before you start card counting, you should learn 'blackjack basic strategy', which is the mathematically correct way to play every move in blackjack to get the best odds. This can lower the house edge to less than 1 percent. When that percentage goes to a negative number such as -1%, then it is you who has the edge over the casino. This is when you complement basic strategy with card counting to get the highest efficiencies.

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Odds vs. Dealer Up Card

The first odds chart shows what kind of advantage the player has vs. the dealer based on what his up card is showing. The first column in the chart is what card the dealer has showing after the cards have been dealt. The second column of the table shows the dealer's probability of going bust based on each card. The last column shows the advantage the player has and the probability of winning based on the basic strategy theory. As you can see, the dealer has about a 43% chance of going bust when he has a 5 showing as an up card. At the same time, the player has about 23% advantage as well. Notice that the player advantage goes negative when the 10 cards and ace start showing up. This means the player is more likely to lose.

Dealer's Up CardDealer Odds of BustingPlayer Advantage Percentage
235.30%9.8%
337.56%13.4%
440.28%18.0%
542.89%23.2%
642.08%23.9%
725.99%14.3%
823.86%5.4%
923.34%-4.3%
1021.43%-16.9%
J21.43%-16.9%
Q21.43%-16.9%
K21.43%-16.9%
A11.65%-16.0%

Blackjack odds of Busting While Taking a Hit

This chart shows the probabilities of going bust after taking a hit. Busting means that your card total would go over 21 points and would be a hard total as well. The highest score you can get when being initially dealt two cards is 21 points so you can never go bust. This means if you took a hit on a hard 21, you would have a 100% probablity of going bust, which is common sense. Also, if you have 11 points or less, it is impossible to go over 21 points on the next hit and your odds of going bust would be 0 percent.

Total Hand ValueProbability of Going Bust
21100%
2092%
1985%
1877%
1769%
1662%
1558%
1456%
1339%
1231%
11 or less0%
Beating The Casino At Blackjack

House Advantage with Multiple Number of Decks

The number of 52 card decks in a game of blackjack influences the house edge. In some cases, the odds increase in favor of the casino when more decks are used. The advantage edge can be as much as 1% towards the casino and this is a big number in terms of odds over the long term. As you can see here, a single deck of card gives the lowest edge for the casino and gives the player better odds. Multiple decks such as eight decks increases the house edge almost 18 times more than it would for the single deck!

Number of DecksHouse Odds Advantage
Single Deck0.04%
Double Deck0.42%
Four Decks0.61%
Six Decks0.67%
Eight Decks0.70%

Two Card Frequency Odds

The next odds table deals with the first two cards being dealt or the 2 card frequency odds. Every player is dealt two cards at the beginning of a round of blackjack so this chart tells you the percentage of getting different categories of hands. A natural blackjack is only 4.8%, which essentially is an ace dealt with a ten card straight off the initial deal. Normally the odds are 3 to 2 and you would win $3 for every $2 wagered. It's a small percentage but it's the most desirable hand to get. The lowest hand you can get is two points (two aces). This is part of the decision hands group where players are usually dealt soft hands and can make decisions without going bust. This group is the most common.

The other category is the hard standing hands. These hands are somewhat desirable because of the high scores likely to beat the dealer. These are the second most frequent two card blackjack hands. Finally there is a no bust two card hand. No bust means any two card hand that won't bust on the next hit, such as any soft hand or hard hand that is 11 points or less.

Two Card CombinationFrequency Percentage
Natural 21 Blackjack4.8%
Hard Standing (17 - 20)30.0%
Decision Hands (2-16)38.7%
No Bust26.5%
Total (all two card hands)100%

Probability Edge for Each Card Removed from Deck

The next table shows how much your odds improve after when certain cards have been dealt and removed from the deck. Certain cards taken out of the deck and increase or decrease your blackjack odds percentage and the house edge.

This is very important for card counting. If you want the absolute perfect odds in card counting, you have to acount for each small change in the odds whenever a card is dealt. As you can see from the table, when small cards are taken out of play, the odds increase in your favor overall. This is a paramount property of card counting. The opposite happens when large cards are dealt. Your odds begin to decrease. When you are counting cards, you will notice your count decreasing when large cards are dealt.

You can imagine how complicated it would be to be adding these numbers in your head while card counting at the same time. If your mind was a computer, it would be easier to keep track of the percentage. Some people can do this, and this is the way to become a perfect card counter! It is easier to keep track of the odds when playing with a single blackjack deck. For example, when five cards are seen on the table, they offer a 0.67% increase in your advantage. In fact, when a lot of fives are used up, your odds will be much higher than if any of the other low cards were used up, even the six point cards. Also, these effects are cumulative so you always need to keep track of the odds after every card is dealt. This data is actually quite amazing!

Casino
Removed CardEffect on Odds
20.40%
30.43%
40.52%
50.67%
60.45%
70.30%
80.01%
9-0.15%
10-0.51%
Jack-0.51%
Queen-0.51%
King-0.51%
Ace-0.59%

Dealer Final Hand Probability Odds

This next table shows the odds of what the dealer's final hand will be. Usually in blackjack, the dealer must hit on 16 and stand on 17. These rules are slightly different for other variations of twenty-one. So generally, the odds of the dealer's final score being 16 are 0% because he must hit. This table will show the probability of the dealer busting or getting a non-bust hand as well as natural blackjacks.

Dealer Final HandProbability of Getting Final Hand
Natural Blackjack4.82%
21 (more than 2 cards)7.36%
2017.58%
1913.48%
1813.81%
1714.58%
Non-Bust (less than 21)71.63%
Bust (more than 21)28.37%

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