# Blackjack 21 + 3: Rules, strategies and examples

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Blackjack 21 + 3 is this popular side bet that can be placed alongside your initial bet in a classic casino. 21+3 Blackjack is a combination of blackjack and three-card poker to offer players on W88 online bookie some attractive odds and a novel form of play. The following article of W88au will fully explain the rules, strategies and examples applied in Blackjack 21+3 on W88 online casino.

## How to play and rules of Blackjack 21+3

During a round of 21 + 3 blackjack on W88, players will bet on whether the first two cards of their hand and the dealer’s face up card can combine, and possibly form a in three card Poker combinations or not. Those combinations include:

• Flush – Three cards of the same suit.
• Straight – Three cards in a row, such as 2 – 3 – 4. The Ace card alone can be high or low.
• Three of a kind – Three cards of the same score.
• Straight flush – Three cards in a row from the same suit.
• Suited three of a Kind – Three cards of the same score and belonging to the same suit.

Players must wager money before their cards are dealt by the dealer. Usually, with this type, there will be a 21 + 3 box designed on the table where you place your stake for the side bet.

The amount you win in Blackjack 21+3 on the W88 online bookie depends on which three-card hand you get, with each paying different odds.

## Odds in Blackjack 21+3

• With Flush, payout ratio is 5/1
• With Straight, payout ratio is 10/1
• With Three of a kind, payout ratio is 30/1
• With Straight flush, payout ratio is 40/1
• With Suited three of a kind, payout ratio is 100/1

There are different 21 + 3 blackjack odds associated with the five different winning hand types, relative to the probability that a player lands them. W88 players should carefully check the odds of blackjack 21+ 3 before participating to be able to divide capital and play appropriately.

## Strategies to win in Blackjack 21+3 on W88

### Basic Splitting Strategy

Some online casinos allow you to split two cards in half if the two cards have the same value. That means alone you will play in 2 positions.

You just need to notify the dealer that you want to split the pair, the dealer will deal more cards into 2 corresponding boxes. And of course you will add a part of the bet. If you win both you have more money and vice versa.

### Double down strategy

Blackjack double down means double bet. In blackjack 21+3, this is one of the most popular bets. A double bet is an opportunity for players to increase the total value of their initial bet up to 100%.

However, in return, you must “stand” after taking an additional card. In essence, double betting shows your confidence against the dealer in that game.

You can only double when the dealer gives you the first 2 cards. When you decide to hit or stand, you can no longer place this bet.

### Strategy on using insurance bets

The insurance bet in Blackjack 21+3 is a side bet that you can use if the dealer’s face-up card is the trump card. Insurance bets as a safety bet help when you are in a dangerous situation, easy to lose.

## The More Decks, The Merrier in Blackjack 21+3

The number of decks in play can affect the bookie’s advantage by one-tenth of your blackjack hand. But the house edge on your 21+3 bet can vary by a whole percentage point depending on the number of decks in play.

Here is the paytable from 1-8 decks if used in Blackjack 21+3:

• 8 decks 2.74 percent
• 6 decks 3.24 percent
• 4 decks 4.24 percent
• 2 decks 7.26 percent
• 1 deck 13.3 percent

## Conclusion

Above is all you need to know about how to play, rules and strategies that can be applied in Blackjack 21+3 on W88 casino. Join playing this exciting game from today to experience.

Brian Lara - Cricket legend has announced himself as a brand ambassador for W88, the world's leading online bookmaker. He is the founder of W88au.net at the International market. In Asia market, he's also the CEO of W88clubz.com - the best W88 affiliate website in Vietnam