A lot of bj tables have side bets, like royal match, 2-card-straight/2-card-20, Top-o-the-deck blackjack, 21 maddness, etc. I always figure they are sucker bets. With royal match, some casinos will pay 3 to 1 if your first 2 cards are a flush, 10 to 1 for a King/Queen of suit. (Some pay 2.5 to 1 and 25 to 1.) On a fresh deck, after your 1st card, you have approx. 1 in 4 chance of getting a second card of the same suit. Now, if you can keep track of suits along with or instead of card counting, can you make money on this side bet?