The rules are as in regular Rummy except that each player in turn may draw two cards from the stock or, before drawing those cards, two cards from the top of the discard pile. Then he discards only one card. Play does not end until a player can lay down his entire hand at once.

An ace counts either high or low in a sequence, and sequences may go round the corner as in K, A, 2, or A, K, Q. In scoring, a player pays only for cards in his which does not form matched sets. He pays the pip value of all unmatched cards, with the ace counting as 11 points