In five-card stud poker, after an ante (an initial fixed-size bet), players are dealt a sequence of five cards, the first down (known only to the player) and the remainder up (available for scrutiny by other players). A betting round ensues after two, three, four and five cards have been dealt to each player with each betting round being opened by the player with the best visible hand. The first player(s) may PASS -- make no bet, waiting for someone else to open betting. Bets may be CALLED or RAISED, with up to three raises per round. Alternatively, a player facing a bet may FOLD their hand, i.e., drop out for this game. After the final betting round, among the remaining players the one with the strongest hand wins in a ``showdown''.
Unlike in flop games, where all known (up) cards are shared by all the players, stud poker reveals partial information about each hand during play. This information is then required to be combined with observation of behaviour to assess the potential of an opponent's hand.