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21+3 Blackjack is a very popular side bets blackjack variation, invented and patented by

• Blackjack 21 App
• Abzorba Live Blackjack 21 Pro
• Blackjack 21 Free Game

Derek J. Webb in 2000

Live BlackJack 21. 172 likes 1 talking about this. MGSlots 21: LIKE and SUBSCRIBE!!YouTube membership: https://gaming.youtube.com/channel/UC3Qx9S. Blackjack Live Casino is the #1 downloaded live mobile multiplayer Blackjack on Google Play – over 1.5m casino gamers so far. This is the most fun, smart and authentic classic Las Vegas card game there is with loads of special features such as live chat, challenge friends, swap cocktails and dress up in amazing outfits – be as cool as you feel and meet millions of gamers.

Play Live Blackjack at 21.co.uk and immerse yourself in the real-life table environment. This is the leading online Live Blackjack game and it’s easy to see why. The real-time video quality. Both land-based casinos and online blackjack casinos that support live dealer blackjack require dealers to take at least one more card with the dealer has a soft 17 showing. The dealer will continue taking more cards—until the house’s hand either becomes a hard 17 or higher, or the hand goes over 21 and goes bust.

. The game is a combination of blackjack and three card poker, where your first 2 cards and the dealer’s face up card are used to combine a three card hand. If you are familiar with Perfect Pairs, then you can look at 21+3 as its further development.

It is considered one of the latest additions and therefore it is not offered by most blackjack sites. Nevertheless, there are 3 versions of 21+3 Blackjack available online and we are sure that more to come.

Content

1. Game reviews
2. 21+3 payout variations
3. Where to Play
4. 21+3 rules
5. Online games comparison
6. Summary

Game Reviews & Free Play

21+3 Payouts

21 plus 3 Blackjack has two common payout tables which you can find below, however some casinos offer their own rule sets. If you encounter any discrepancies, we recommend that you check the appropriate house edge before you proceed.

*We’ve also added option #3 since it’s the one used in IGT online casinos. The odds are calculated based on 6 deck games.

Option #1

Flush – 5:1

Straight – 10 to 1

3 of a kind – 30 to 1

Straight flush – 40 to 1

Suited three of a kind – 100 to 1

Odds: 95.38%

Option #2

Flush – 9 to 1

Straight – 9 to 1

Three of a kind – 9 to 1

Straight Flush – 9 to 1

Odds: 96.76%

Option #3

Flush – 5:1,

Straight – 10 to 1, No deposit bonus free spins.

3 of a kind – 33 to 1,

Straight flush – 35 to 1

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Suited three of a kind – 100 to 1.

Odds: 95.86%

Where to Play

Casino	Bonus	Why it’s here	Best Game
100% up to $1000	Best for USA and AUS casino	Single Deck – 0.08% house edge
100% up to £/$/€ 100	Best for UK, Canada and EU	Classic Blackjack – 0.21% house edge
150% up to $1500	Highest USA Blackjack Bonus	N/A

21+3 Blackjack Rules

21+3 is based on European blackjack rules, meaning that the dealer doesn’t check for blackjack. Therefore in case the dealer has a natural, your doubles and splits will be lost as well. Other rules:

• Usually played with 6 standard decks.
• Dealer stands on all 17s.
• Double down rules vary, but usually you can double on 9,10, 11 value.
• Doubled down hands receive one card.
• Split up to 2 hands, including Aces.
• You can hit or double split hands, including Aces.
• Blackjack pays 3:2
• Similar value hands are push.

The house edge under these rules is 0.48%.

Blackjack 21+3 Online Games Comparison

There are three 21+3 games available online. The first can be found in Wagerworks (IGT) casinos. The second one was developed by Felt Gaming and can be found only in Unibet casino. The third one is a live dealer game by Evolution Gaming.

Basic Game Rules

We will mention only the rules that differ from the common ones listed above.

IGT (Wagerworks): You can split two 3 hands and re-split Aces. Double down on any 2 cards.

Felt Gaming: Standard rules

Evolution: Played with 8 decks. Also offers Perfect Pairs side bet. Double down on any 2 cards. Single card to split Aces.

21+3 Bonus Comparison

Evolution: Standard Option #1, but played with 8 decks which lowers the side bets house edge by roughly 1%.

Felt: Standard Option #1.

IGT (Wagerworks): Option #3.

Bottom Line

Wagerworks (IGT)

Base Game: 99.70%

Side Bets: 95.86%

Evolution Gaming

Base Game: 99.41%

Superbet online betting. Side Bets: 96.38%

Update: Realistic Games also offer 21+3 blackjack. The special rules are: based on American Blackjack (dealer checks for blackjack). Double down on any 2 cards. Split Aces receive only 1 card. Bonus payouts are as on Option #1, except the 3 of a Kind which pays 25:1. Under these rules basic odds are 99.59%. The side bet odds are extremely low, just 92%.

This is our first blackjack game and trainer and I'm proud to finally add our version 2 with enhanced graphics and the ability to learn how to count cards to my website. The game is mostly self-explanatory. If you make an inferior play, the game will warn you first. I recommend that before you play for real money both online in person that you practice on the game until you very rarely are warned you a making an inferior play. If doubling or splitting is mathematically the correct play, but you don't have enough chips, the game will give the best advice for what you can afford to do. Do not change rules mid-hand. If you do, the change will not take effect until the next hand. The advice is based on my own analysis and basic strategy tables for one, two, and four+ decks. The deck(s) is(are) shuffled after every hand.

If you find any bugs, please contact me. A screenshot would be appreciated if you claim the game is misplaying a hand. I get a lot of incorrect reports that the advice given is incorrect. This usually can be explained by the user not using the correct basic strategy for the rules selected. I have also had many comments about the advice on a player 16, composed of 3 or more cards, against a 10. As a rule of thumb, the player should stand in that situation. However, that is a basic strategy exception. The game only knows basic strategy. Also, please note that it is a standard blackjack rule that split aces get one card each. If one of them is a ten, it is not a blackjack, it is just 21 points. That is how blackjack is usually played.

I would like to thank JB for his outstanding work on this game, and Dingo Systems for the cards.

Online Blackjack Bonuses

We constantly maintain a database of all the casino bonuses from the hundreds of online casinos we have reviewed, and we note which bonuses allow blackjack to count towards the wagering requirements. The below table shows a ranked list of the best money online blackjack bonuses, the ranking also takes into consideration wagering requirements, bonus amount offered, the quality of the site and more.

Rank	Casino Name	Bonus	%	Wager	Cash	Code	Casino Name	Bonus info
1	King Billy Casino	🧙	$100+100 spins	200%	1000xB
King Billy Casino	Bonus	🧙$100+100 spins
	%	200%
	Wager	1000xB
	Code
	2	Sloto'Cash Casino	🧙	$33	-	LCB33
Sloto'Cash Casino	Bonus	🧙$33
	%
	Wager	-
	Code	LCB33
	3	Win A Day Casino	🧙	$68	-	FREE68LCBN
Win A Day Casino	Bonus	🧙$68
	%
	Wager	-
	Code	FREE68LCBN
	4	Las Vegas USA Casino	🧙	$11000	100%	90xB&D	WIZARDBONUS
Las Vegas USA Casino	Bonus	🧙$11000
	%	100%
	Wager	90xB&D
	Code	WIZARDBONUS
	5	Old Havana Casino	🧙	$11000	100%	90xB&D	WIZARDBONUS
Old Havana Casino	Bonus	🧙$11000
	%	100%
	Wager	90xB&D
	Code	WIZARDBONUS

Blackjack Online FAQ

Q1: What are the rules in online blackjack games?

A: As in land casinos, they vary. Online help files are notoriously badly written and incomplete. The Wizard of Odds, we try hard to keep an accurate listing of rules for every brand of software and live dealers. You may find such rules, for every game, in our Software Review section.

Q2: Generally speaking, are the rules better in land or online casinos?

A: All things considered, I would say they are better online. For one thing, you almost never see a blackjack (ace and 10) pay 6 to 5 only online, while this is becoming the norm in land casinos in the United States.

Q3: What are the typical rules at live dealer casinos online?

A: Live dealer rules are very similar to what you would see in a land casino. The typical rules are:

• Eight decks
• Dealer stands on soft 17
• Dealer does NOT peek for blackjack
• No surrender
• Player may double on any two cards
• Player may double after a split
• No re-splitting

Be careful double or splitting if the dealer has a ten or ace showing. At most live dealer brands, you will lose everything if the dealer gets a blackjack. Under this 'no peek' rule, the only time you should put more money out on the table against a potential dealer blackjack is to split two aces against a dealer 10.

The house edge under the rules above is 0.61%.

Q4: When are the cards shuffled in online blackjack?

A: In a fully electronic game, they are probably shuffled after every hand. In a live dealer game, they are usually shuffled about half way through the shoe.

Q5: Oh really?! Even with only 50% penetration, what is to prevent me from counting cards against a live dealer?

A: I've asked this question of some people in the business. Nobody would tell me exactly how they protect their game against counters, but they assured me that they do. If I ran a live dealer casino, I would run a test of every player to see how their bet size is correlated to the true count. Then I would carefully examine the play of such players with a strong correlation.

Q6: How do 'probably fair' casinos accomplish so-called in blackjack?

A: It is rather involved, but here is typically how it is done:

1. The casino will generate a random long string of characters, called a Server Seed, hash it, and give the hashed result to the player BEFORE he makes a bet.
2. The player chooses a string of characters himself, called the Client Seed, or accepts a random default provided by the casino.
3. The client and server seed are combined and hashed.
4. The hashed result from step 3 will be parsed somehow, with the hexadecimal characters converted to base 10 and then mapped to specific cards if in a desired range.
5. The game will deal cards according to their order in the hash from step 3. This hash should be long enough that running out of cards would be almost impossible.
6. After the hand, the casino should reveal the Client Seed, which the player may verify hashes to the result provided before the bet. It is then a tedious process above to do all the math to convert the hash to actual cards, but the player may do that if he wishes.

I go into this in greater depth for a particular brand in my page on Blackjack (Encrypted Version).

Abzorba Live Blackjack 21 Pro

Q7: I don't want to bother jumping through all those hoops to verify fairness in an encrypted game. Do you think that just the ability to verify fairness is enough to keep the casinos honest?

A: No. Encrypted or not, a casino could cheat the player in any game, except sports betting, any time they wished. In the case of an encrypted casino, the operator could choose a Server Seed that causes the player to lose after the bet is made. If the player catches them in a hash mismatch, which I think very few players bother to check, the casino can simply ignore the accusation or deny it without comment. This is exactly what happened to me at Wixiplay.

Q8: Your story aside, how common is cheating at blackjack, or any game, online?

A: In my opinion, it is quite rare.

Q9: How can I improve my odds of not being cheated?

A: There are hundreds, perhaps thousands, of Internet casinos out there. In the absence of any serious government regulation, the industry has done a pretty good job of regulating itself. Between legitimate watchdog affiliate sites and some common sense, here are some ways to choose a reputable brand to trust with your hard-earned dollar:

Blackjack 21 Free Game

• Read the fine print. Most casinos have a good looking main page, but dig around the more obscure pages like terms & conditions. If you see a lot of spelling and grammatical mistakes, that should set off a red flag.
• Ping customer support. If you can't think of your own question, ask anything, for example, 'Do you accept players from Kyrgyzstan?' See how long it takes for them to reply and measure their professionalism and courtesy of their reply.
• Check reputable affiliate sites. Many affiliate sites promote whoever pays the most, but the good ones are picky about who they promote and will intervene in the unlikely event of a player dispute. We would like to think of ourselves as one of the good ones. A good way to avoid the worst of casinos is to check the blacklists of reputable affiliates.
• Smart small. Players should always bet in moderation anywhere, but especially when opening a new account online with an unfamiliar brand. Dink around with a small deposit and small bets until you have built up some trust.

Q10: Any other words of advice before playing blackjack online?

A: Whether playing online or in a land casino, use the appropriate basic strategy for the rules offered. The Wizard of Odds blackjack strategy calculator will give the correct basic strategy for almost any set of rules.
A much greater problem than outright cheating is online casinos faulting players on a technicality in the rules and seizing whatever funds they deem appropriate. This is a particularly a problem with bonuses. The terms and conditions for bonuses can be pages long and very restrictive in terms of allowed games, bet sizes, and types of bets. If the player loses, nobody ever checks, but after a win and withdrawal request, suddenly the play may be subject to careful review for compliance. Never assume that because you were invited to play a bonus via Email that you're eligible for it. Casinos typically blast everybody in their list. An easy rule to overlook is when a bonus is eligible for 'new money' only. Don't expect the casino to enforce this rule when entering a couple code, but do expect it when you actually make a withdrawal and they look for any reason to deny it.
While bonuses can make your money last much longer and increase your chances of winning, they are a minefield in terms of compliance. Read the rules carefully. If in doubt the way you play is compliant, then don't ask for the bonus in the first place.