The 21+3 side bet is the most common side bet in blackjack. It is offered in most land-based and online π casinos. This side bet is adapted from poker and involves both the player's and the dealer's cards.
There are four major π types of 21+3 side bets in Blackjack. The payout for each winning hand was 9:1, resulting in a house edge π of 3.24%. The wager results in a win if the player's two cards and the dealers' face-up cards make any π of these combinations.
Flush
This bet is placed on the possibility of all the three cards being of the same suit. The π odds of winning this bet are 5:1. For example, three spade cards (i.e., 2β 7β 4β ).