Played in hundreds of casinos around the world and online, blackjack is a widely known gambling game that fascinates players with its apparent simplicity and the mystique surrounding the practice of card counting. This game is fast-paced, a spectacle to watch, and it involves an element of skill, so it is no wonder it attracts professional gamblers and casual casino-goers alike.
Often compared to poker because both games require skill, blackjack is much simpler and is played against a dealer rather than against other casino patrons who may be more experienced than you. As with most gambling games – and most things in life – blackjack is easy to learn but difficult to master. Perfecting one’s skills often takes years, hard work, and a great deal of dedication, but this should not stop gambling enthusiasts from trying to improve.
On the contrary, with the right sources of information, most people can easily learn the game and discover how to win consistently. Knowing the fundamental rules and principles is key to improving one’s skills, but it is also fascinating to explore the origins of blackjack and how it has changed over time.
History of Blackjack
1Origins of Blackjack
Blackjack’s origin is widely debated, and there is still no consensus on exactly how, when, or where the game began. What we do know is that it was not invented by a single person at a specific moment in time. Most researchers believe that the precursor to modern-day blackjack was a game known as Vingt-et-Un. This translates from French as Twenty-One, and it was played in gambling houses across France in the 17th century.
Similar gambling games existed even earlier, one example being Ventuina. This game was described in the Spanish novella collection Novelas Ejemplares, written between 1590 and 1612 by Miguel de Cervantes, the author of Don Quixote. An earlier Spanish variant, Trente-un (Thirty-One), used very different rules yet was clearly related to blackjack. Comparable games appeared throughout Europe, such as the French Quinze (which translates as Fifteen) and the Italian Sette e Mezzo, or Seven and a Half.
In the 18th century, French colonists brought Vingt-et-Un to the Americas, and the game soon spread through gambling establishments. It was later popularized by the licensed gambling halls in New Orleans, although its rules varied and cheating was common among both players and dealers. The game was offered across North America in the 19th century, but the name blackjack would not appear until decades later.
2Development of the Game
Because gambling was illegal in France during the 19th century, Twenty-One did not evolve there. Instead, it changed and eventually became the modern game in the United States after Nevada legalized gambling in 1931.
3Las Vegas and House-Banked Blackjack
Before gambling was legalized, Las Vegas was only a small settlement. In 1931, however, construction of the Hoover Dam brought thousands of young male workers, and local authorities legalized gambling to capitalize on the potential revenue. The newly licensed casinos and regulators quickly realized they needed standardized rules and oversight.
By then, the game of 21 was already extremely popular, and to attract customers, casinos offered a variety of bonus payouts. One such reward paid 10 times the bet when a player held an Ace of spades and a black Jack. This hand was called blackjack, and although casinos eventually discontinued the 10:1 payout, the name stuck.
4Edward O. Thorpe and the Beginning of Card Counting
Blackjack quickly became gamblers’ favorite game, and many claimed they could track the cards and gain an advantage over the casino. In the 1940s and 1950s, several legendary players used systems that seemed more mysterious and magical than practical. Before long, mathematicians also grew fascinated with blackjack and the theory behind it.
One of them, Edward O. Thorpe, began analyzing the game with an IBM 704, one of the earliest computers capable of handling complex mathematical equations. Thorpe developed a theory that demonstrated mathematically that the house edge in blackjack could be overcome by card counting. In 1962, he described the Ten-Count system in his book Beat the Dealer, marking the official start of card counting. The probability theory he employed also became fundamental to the development of modern blackjack strategies.
What Is Blackjack Today?
Today, blackjack is a gambling game played with one or more standard 52-card decks with the Jokers removed. Standard American blackjack usually uses six or eight decks, but there are also games that employ one, two, or four decks. While the four suits are irrelevant (except for bonus payouts in some blackjack variations), the value of the cards is what matters, as this is a comparing game. In other words, players compare their hands to the dealer’s hand in an attempt to beat it.
Typically, a game of blackjack is played on a special semicircular table where the dealer sits opposite five to seven player seats. Each player has a betting position marked on the felt with additional boxes for side bets in some blackjack variations. Because this is a banking game, casino patrons play against the dealer – whereas in poker, players compete against one another.


Basics of the Game
The objective of the game is to beat the dealer by holding a hand whose value is as close to 21 as possible. If the hand exceeds 21, it is called “busting,” and the player immediately loses. The strongest hand is called blackjack and consists of an Ace and any 10-value card.
The cards have different point values – cards from 2 to 9 are counted at face value, whereas cards from 10 to King count as 10. The Ace, however, can be worth 1 or 11. A blackjack hand – an Ace and a 10-value card – totals 21. Of course, not all 21-value hands are blackjack.
Gameplay
After players place their bets, the dealer deals two cards face-up to each player and two cards to himself. In American blackjack, only the dealer’s first card is exposed – the second is dealt face-down so players cannot see it. The dealer is allowed to peek if his upcard is an Ace or a 10-value card; in other words, if he may have blackjack.
Each player then has several options: draw another card (“hit”), refuse additional cards (“stand”), or double the bet (“double down”). Those who double receive one final card, after which their turn ends and their stake is doubled. Players who receive two cards of the same value can also choose to “split” the pair into two hands – an additional card is then dealt to each new hand. Naturally, this second hand requires a second bet equal to the original stake.
Some games also allow players to buy Insurance, betting that the dealer will have blackjack, while others offer the option to surrender half of the bet and end the hand.
Once all players act, the dealer also hits or stands according to the specific house rules. However, the dealer cannot double down, surrender, or buy Insurance. Typically, the rules state whether the dealer must stand or hit on 17 and specify which types of 17-value hands this applies to.
Payouts
Most blackjack variations pay the same amount of money for winning hands. Typically, players who receive blackjack on the initial deal win immediately and are paid 1.5 times their wager. This is usually shown as 3:2 on the game’s paytable. When a player’s hand is stronger than the dealer’s without exceeding 21, it is a regular win and pays even money.
Blackjack tables usually display the payouts for two main outcomes. One is the 3:2 blackjack payout and the other is the Insurance payout, which is 2:1. If the game offers side bets or bonus payouts for specific hands, these will also be listed on the table.
- Multi Hand Blackjack
- Atlantic City Blackjack
- European Blackjack
- How to Play Blackjack
- Blackjack Hands
- Blackjack: The Good and the Bad Rules
- Mathematics of Blackjack
- Blackjack Strategy: The Best Way to Win Consistently
- Blackjack Side Bets
- Blackjack Variations
- Blackjack: Tips for Beginners
- Advantage Play in Blackjack
- How to Count Cards at the Blackjack Table
- Money Management in Blackjack
- Edward Thorpe and the Ten Count System
- The Zen Count System
- The Advanced Omega II Card Counting System
- The Uston SS Card Counting System
- The Ace/5 Card Counting System
- The Knock Out Card Counting System
- The Red 7 Card Counting System
- The Wong Halves System for Card Counting
- Choosing the Best Blackjack Game Online
- How to Play Live Dealer Blackjack
- Microgaming Blackjack
- RTG Blackjack
- NetEnt Blackjack
- Mobile Blackjack Apps
Blackjack vs Other Casino Games
The best casino game
Chance-Based Games
Skill-Based Games
Because blackjack is a form of gambling, it is inevitably compared to games like roulette and slot machines. While the game has its fans, many players prefer slot machines because they are extremely easy to play – there is no skill involved, so you simply rely on chance to land a winning combination. Which casino game, then, is the best?
Ultimately, the answer depends on each casino patron’s individual tastes and preferences. Some players enjoy the simplicity of slots, others are captivated by the elegance of roulette, and many appreciate the challenging nature of table poker.
View more...Chance-based games rely on players’ luck rather than skill. In these games, the outcome of a round is a random event that is not influenced by players’ actions. Such games include lotteries, scratch cards, bingo, slot machines, craps, and wheel of fortune-style games. In truth, all forms of gambling could be described as games of chance because each contains an element of randomness, including blackjack, poker, video poker, and betting on sports and horse races.
Nevertheless, it is important for players to differentiate between slots and lotteries, where the outcome depends purely on luck, and games like blackjack and poker, where their decisions can affect the result.
View more...There are also skill-based games such as blackjack, poker, and video poker, where the outcome can be significantly influenced by players’ decisions. Although chance still plays a role, a skilled player can usually increase their odds of winning by employing strategies grounded in game theory and mathematical probabilities. In poker, for example, players also learn to bluff and use psychological tactics against their opponents.
View more...Blackjack Games



Online Blackjack
Online blackjack is played much like traditional table blackjack – it follows the same rules and offers the same payouts. It is available at hundreds of online casinos and can often be played without wagering real money. Thanks to the game’s popularity and the boom of gambling sites over the past couple of decades, software developers have created more blackjack variations than you would find in any land-based casino.
RNG Games
In its virtual form, blackjack is far more accessible than the traditional game found only in licensed gambling establishments. It is designed to simulate the real-life experience, so players see the familiar blackjack table, virtual chips, and cards dealt from a six- or eight-deck shoe. When played online against a computer, the game is completely fair, and players are free to apply any strategies or betting systems they prefer.
Each deal is random, guaranteed by complex computer software known as a Random Number Generator, or RNG. RNG technology underpins countless computer games; in gambling, it recreates the randomness of a freshly shuffled deck of cards. Because RNG-based blackjack has no predictable patterns or sequences, it eliminates the effectiveness of card counting, card tracking, and other advantage play methods still possible in brick-and-mortar casinos.
Live Dealer Blackjack
Online blackjack players can also choose to play against a real dealer. Live casino lobbies combine the best of both worlds – the thrill of in-person gambling with the convenience of online play. Here, high-rollers can wager hundreds or even thousands of dollars because table limits are typically more liberal.
Live games are usually streamed from professional studios, though some are hosted by land-based casinos with dedicated live tables. Multiple camera angles, live chat options, and elegant casino settings create the feel of being in an actual casino. The cards are dealt by professional dealers, and the tables feature seven seats – just like those in Las Vegas.
These games are not as fast-paced as RNG blackjack, so players can savor the betting experience. They can usually select tables with various betting limits and languages other than English. Unlike virtual blackjack, however, live tables are not always available 24/7.
Blackjack Glossary
21
This is the second-best hand and it comprises of three or more cards with a total value of 21. If 2 two cards have the same value, this is blackjack.
Advantage Player
Advantage players typically use strategies or track the cards to gain a mathematical advantage over the house.
Bankroll
This is the player’s specific amount of money dedicated to playing blackjack (or any other casino game). The bankroll does not include funds for meals, drinks or tips in the casino.
Balanced Count
Any card counting system where the sum of the negative and positively valued cards is zero.
Basic Strategy
This is the optimal, mathematically proven strategy for playing blackjack, which may vary depending on the specific rules, side bets, and payouts.
Betting Limits
These are the minimum and maximum bets that can be placed in every blackjack round.
Blackjack
The best hand in this game and it includes an Ace and 10-value card (10, J, Q, or K).
Burn Card
This is the first card of a new deck after a shuffle. The burn card is placed in the discard tray is not used for play.
Bust
Players or dealers having a total over 21 are said to bust, losing immediately.
Card Counting
This is the practice of tracking and counting of the cards that have been dealt according to one of many available systems. Some systems require card counters to track the high and low cards in the deck and how likely a high card is to be dealt next.
Cut Card
This brightly colored plastic card cuts the cards in the shoe and when the dealer reaches it, he reshuffles.
Dealer
The dealer is the casino employee who deals the cards on the blackjack table. In RNG blackjack, the dealer is simply a representation of the casino that competes against the player.
Deck
Blackjack uses standard decks of 52 cards – four suits of 13 cards from 2s to Aces.
Deck Penetration
This term is used to show the percentage of cards that have been in play before a reshuffle.
Double Down
Doubling or Doubling Down is usually allowed on the first two cards. Players who choose to Double Down are dealt one more card and their hand is compared to the dealer’s total. The bet is, of course, doubled.
Early Surrender
Some blackjack variations allow players to surrender half of their bet and not play out their hand before the dealer peeks for blackjack. This option is called Early Surrender.
Even Money
The standard payout for a regular win is equal to the bet size. This is even money and is represented as 1:1.
Face Card
Jacks, Queens, and Kings are face cards and their value in blackjack is always 10.
Five Card Charlie
A rule in some blackjack games, according to which the player wins automatically if he holds 5 cards without busting. Variations of the rule include Six, Seven and Ten Card Charlie.
Flat Betting
Flat betting is the practice of wagering the same amount of money throughout the entire gaming session without increasing or decreasing the bet.
Hard Hand
Hard hands or hard totals either do not include an Ace in them or the Ace can be counted only as 1 and not 11 to avoid going over 21.
High Roller
Players who place large bets are called high rollers.
Hit
When the player wants another card to the initially dealt hand, he Hits.
Hole Card
The dealer’s second card in standard blackjack is dealt face-down and is called a hole card.
House Edge
Every casino game, including blackjack, has a built-in advantage determined by the specific rules and payouts. This advantage is referred to as house edge and is expressed as a percentage.
Insurance
This is a side bet that can be made if the dealer’s first card is an Ace. It is half of the original bet and it pays 2:1 if the dealer gets blackjack.
Late Surrender
Some tables allow players to surrender after the dealer checks for blackjack and this rule is referred to as Late Surrender.
Natural
Players who receive an Ace and a 10-value card initially are said to have a “natural 21” or blackjack.
Pat Hand
Hands totaling 17 or more are called pat hands, as players always stand on such hands, i.e. they refuse to take additional cards.
Perfect Pairs
This is a side bet in many blackjack games and it wins if the player receives two cards of the same rank. Pairs could be mixed, colored or perfect. The perfect pair consists of 2 cards of the same rank and suit and it pays the most.
Progressive System
Progressive systems or simply progressions help players determine when to increase or decrease the bet size. There are positive, negative, and flat betting systems.
Push
When the player and the dealer hold cards that are equal, the two hands are tied and this is referred to as a “push” – the bet is returned to the player.
Shoe
All card decks used in a game are placed in a device called a shoe.
Shuffle
After a certain percentage of the cards in the shoe have been used in play, the dealer shuffles all decks to mix them. Shuffling is essential because it helps to deal random cards and prevents card counting.
Soft Hands
Soft hands or soft totals include an Ace, which can count as either 1 or 11. Soft hands are more versatile and give players more freedom than hard totals, where an Ace is 1.
Spanish Deck
Spanish decks include 48 cards. These are standard decks but with all 10s removed.
Split
When players receive two cards of the same rank, they can separate them into two single-card hands with the Split option. If they split a hand, they place a second bet that is equal to the original stake.
Stand
Players, who believe their hand is good enough, can choose to Stand and refuse taking additional cards.
Stiff Hand
Any hand that can easily bust (go over 21) when drawing one more card. Hard hands totaling 12 to 16 are stiff.
Surrender
Some casinos allow players to forfeit half of the original bet to avoid losing it entirely when the dealer’s face-up card is high.
Tie
When the player and the dealer’s hands are equal in value, they are tied. Tie is synonymous with Push or Standoff.
Unit
This is the minimum, base bet a player is placing in the game. The term is typically used in strategies and progressive systems.
Upcard
This is the dealer’s first, face-up card.
Wager
The term is used as a synonym for a bet.