a method is provide for operating a blackjack game . means are provided for a player to make an initial wager in order to participate in a standard game . further means are provided for the player to make a further wager on a jackpot feature . after the cards are dealt , the appearance of a selected card combination is determined . if such a combination appears and the player wagered on this feature then a corresponding progressive jackpot is paid to the player . the result of the standard game is determined as normal .