This variation is played where seven cards are still dealt, but one card is dealt face-down, followed by six cards face up. The odds are far more likely that somebody if not several people are going to match up, not to mention that there would be six betting rounds altogether. Players are helped through this torment of a game by the fact that if a player's down card matches any card that has been dealt to him face-up, those cards are wild.
For example, if a player's card in the hole is a 3 and another 3 is dealt face-up to that player, both of those 3s are wild. If a player's card in the hole matches NO card that the player has face-up, then NO cards in that player's hand are wild. This is an expensive game.