I’ve been analyzing the mathematics behind Three Card Poker quite extensively. The standard house edge on the Ante-Play bet is approximately 2.0%, while the Pair Plus wager carries a slightly higher edge at 2.7%, and the Prime wager sits at 3.62%. What’s particularly interesting is how the edge changes in a face-up game where you can see other players’ cards. If you had full knowledge of other players’ hands (say 15 more cards at a 6-player table), you could reduce the house edge from 3.37% to 2.62% by adjusting when you call or fold based on the visible high cards. This is because seeing more cards gives you information about whether the dealer is likely to qualify. However, with COVID restrictions limiting table capacity and most online versions being heads-up against the dealer, this advantage is largely theoretical. I’ve been playing at 888poker’s casino section where they offer a decent version with standard rules.