The original game of the group was Zioncheck, invented by Ruth Armson in the 1930's, which had just six contracts. This page describes several games which are so similar that they can almost be regarded as variations of or alternative names for the same game. The contracts become progressively more demanding on each deal. In each round there is a different contract: players have to collect a particular combination of groups and sequences before they are allowed to meld. This page is partly based on contributions from Magnus and Greg Petras.Ĭontract Rummy is a version of Rummy consisting of a series of rounds.