However, when playing the game with the 21+3 side bet, the house edge increases slightly, reaching 4.24% in a game with four decks, 3.24% in a six-deck game, and 2.74% in an eight-deck shoe.Īs for the odds, they vary depending on the game and provider. Regular blackjack typically has a low house edge (around 2%). However, remember to place the wager before the dealer deals the cards. Suited three of a kind - Three face cards of the same suit and valueĪs you can see, the 21+3 is an easy bet to understand and play.

In this case, you bet on whether your first hand and the dealer’s upcard form one of the hands in three-card poker: Essentially, it combines two casino classics - blackjack and three-card poker, creating excellent odds.

What Is a 21+3 Blackjack Side BetĢ1+3 first appeared in Las Vegas in 2001, and today it’s among the most popular blackjack side bets. The following article will explain the 21+3 side bet and how you can use it while playing blackjack, online or in a land-based casino.