This popular variation of “Oklahoma Gin” rummy, the significance of the original face up card decides the highest count of unmatched cards with which it is likely to knock. Pictures denote 10 routinely. Hence, if a seven is turned up so as to knock, you must decrease your count to 7 or less.
If the original face up card is a spade, the concluding score for that deal
(including any undercut or gin bonus) is doubled. The target score for winning Oklahoma
Gin is normally set at 150 rather than 100. Few people play that a player who undercuts
the knocker scores an extra box in addition to the undercut bonus. Moreover, a player
who goes gin achieves two additional boxes.
In a 3 player gin rummy, the dealer deals to the other two players
but does not join in the play. The loser of each hand deals the next, which is then played between the winner and the dealer of the preceding hand.
In 4-player playing as two partnerships, each player in a team plays a separate game with one of the opponent pair. Players alternate opponents, however hang-on in the same teams. At the end of each hand, if both players in a team won, the team gains the total of their points. If one player from each team won, the team with the higher score gets the difference. The first team whose collective score reaches 125 points or more wins the game.