Online Blackjack Guide
Blackjack is firmly lodged in our popular culture, a big part of the modern casino zeitgeist. The MIT blackjack team’s card-counting exploits, woven into books and even a feature film, put blackjack back in the national spotlight, a spot it originally earned because blackjack is just plain cool. The word blackjack calls to mind smoky casino floors, men in exquisitely tailored suits, stacks of chips, and intrigue.
This page looks at blackjack past, present, and future, why people love this simple European game, and how the game’s rules have changed over time. Our blackjack guide covers some of the most popular card counting systems including the KO and A-5 in addition to variations of the game, how to play online and blackjack strategy.
You will also find pages comparing the best sites to play blackjack online. This includes casinos with real money games, compatibility for Macs and mobile devices as well as bonus offers.
Last but not least, if you have any questions about online blackjack or blackjack in general, we offer an extensive FAQ guide with answers to over 100 blackjack questions.
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Most Popular Blackjack Pages
Online Blackjack Guide - Best Sites / Compatibility / Game Variants
The most significant difference between online blackjack and live blackjack are the options. By playing online you have more control over the kinds of games available to you, how you want to play them and even the payouts or betting limits.
Below is a sample list of the most popular pages on our site. This list includes real money sites, where to play for free, blackjack casinos for US players and even live dealer casinos. If you’ve never played a hand online, use the free game below to take it for a test drive.
Popular Blackjack Pages
Play Blackjack Online for Free
Mobile Blackjack Games
Our mobile section provides reviews and comparisons of online blackjack games compatible with a variety of devices. Use the links below to find casinos that offer blackjack games for your mobile device. Each review covers how to play for real money and free, bonuses for new players and game variations.
Part 1 of our blackjack FAQ answers strategy questions as well as terms, online play and odds.
Part 2 of our guide covers negative variation, insurance options, house edge, surrendering and more.
Part 3 answers questions for card counting, deviation, casino shills, decks and splitting.
Part 4 covers bankroll requirements, ebooks, blackjack systems, variations in the game and strategy.
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Online Blackjack Software
Some players prefer Microgaming’s “Gold” blackjack, while others enjoy RTG’s variations to the game. The software used by each provider differs from graphics, to payouts and even betting limits. For this reason, we have a section specifically for the different types of software used at online casinos, with the top 5 listed below.
Each page covers game variations available within the network as well as a list of the top five casinos using that software. Please note – US players will only be able to play at blackjack casinos supported by Rival Gaming or Real Time Gaming.
How a Game of Blackjack Works
Players place a wager before any cards are dealt. Players who wager are then dealt two cards face up. The dealer is dealt one card face up and one card face down.
All players can choose to either stay at the point total they’re at, or they can press their luck and try to get their point total closer to 21 without going over. Once all the game’s players are done with their decisions, the blackjack dealer turns up the face-down card. In most modern blackjack games, the dealer must stand on any total of 17 or higher and must hit on totals of 16 or lower.
- » Ace to Five Card Count
- » KO Card Count
- » High Low Card Count
- » Card Counting Methods
- » Blackjack Strategy Charts
- » Reducing the House Edge
- » Buying Insurance
- » What Are Negative Variations?
- » What Are Positive Variations?
- » The Odds in Blackjack?
- » Online vs. Live Blackjack
- » How Do I Play Perfect Blackjack?
- » Blackjack Tips
- » Dealer Probabilities
- » Blackjack charts
- » Single Deck Blackjack
Those are just the most basic rules for blackjack, but it’s easy to see where blackjack’s rules leave wiggle room for strategy. The most obvious advantage players have over the house is that they know exactly how the House is going to react to different point totals. If the House draws a total of 15, the House has to take another card. Players are the only ones at the blackjack table with true free will. This freedom to choose creates opportunities for strategic thinking and play.
Blackjack, because of the rules of the game, offers some of the best odds in the casino. Since the middle of the 20th century, blackjack strategy has been perfected by mathematicians and professional gamblers. Blackjack strategy cards lay out in plain English what moves are optimal for every possible blackjack hand. If you follow those basic blackjack strategy tips every hand, the House edge on an average blackjack game is approximately 0.5%. (Rules variants in some casinos can affect this house edge. For example, if a casino only pays out 6 to 5 on a blackjack instead of 3 to 2, the house edge goes up dramatically.)
Further attempts to apply strategy to blackjack led directly to the idea of keeping a mental count of which cards have been played. This is now called “card counting” or “counting cards.” Because card counting isn’t cheating, requiring only a great memory and a head for numbers, it’s a legitimate and legal strategy. But casinos retain the right to refuse service to suspected card counters, which makes it a risky strategy.
Blackjack has long occupied a starring role in casinos. Online casino gambling has brought the portside gamble once known as ventiuna into our living rooms. Card counters and professional gamblers, not to mention gambling cheats, have used the game’s rules to their advantage, winning millions of dollars and securing blackjack’s place in people’s minds as the go-to game for big bucks. As long as blackjack tables offer the most advantageous odds of any table game, expect to see crowds gathered around blackjack tables, pressing their luck for a piece of the casino’s coffers.
The History of Blackjack
The first known written reference to blackjack comes to us from a Spanish literary giant. Most famous for the farcical novel Don Quixote, Miguel de Cervantes was the first to describe the game ventiuna. All we know from Cervantes is that the object of the game was to score as close to 21 without going over, and that Ace cards could be worth either 1 or 11 points. Sound familiar?
Cervantes wrote the reference to blackjack in the early 17th century, meaning blackjack has been with us for at least 400 years. Since ventiuna was a game played among workers in port cities, it’s no surprise that the game, or versions of it, made its way around the world.
When ventiuna made its way to the UK, the British called it “pontoon,” a phonetic bastardization of the Spanish ventiuna. Pontoon and other versions of ventiuna around the world added a new wrinkle to the game, a reward for a hand made up of the Ace of Spades and the Jack of Clubs or Jack of Spades. Both of those Jacks are black, so it’s easy to see where the name blackjack comes from.
Like other casino and card games, blackjack became popular across America during the 1800s, as the frontier was settled and America’s borders spread to the west. Blackjack became a standard casino game; it would be difficult to find a casino in America or in most parts of the world that doesn’t offer at least one blackjack table.
Modern Blackjack Rules
The object of a game of blackjack today is the same as it was in the time of Cervantes: build a hand whose card point values are as close to 21 as possible without going over. In modern blackjack, face cards (Jacks, Queens and Kings) are worth 10 points, Aces are worth 1 or 11, and all other cards are worth their number.
There are three potential outcomes: the player wins, the House wins, or the player and the House tie, which is called a push. Any pair of cards made up of one Ace and one 10 is called a blackjack, and when it is dealt in the first two cards, the player automatically wins at 1.5 to 1 odds.
Winning blackjack just means beating the dealer’s point total without going over 21. The winner of a game of blackjack is a player closest to a total of 21 who hasn’t gone over.
Blackjack also has multiple variations to the game. Below is a list of links that will take you to our blackjack variations pages. Each game provides easy to understand instructions on how to play, tips for playing a particular game as well as strategies to beat the house edge. Most of the blackjack variations you see listed on this page are available at online blackjack casinos.