The OmniStackers Club play all Four in a Row variants. Most of us are expert in at least one variant and competent in most of the others. However mastery of a Four in a Row variant isn't necessary to become a member, a friendly disposition, willingness to contribute and long term commitment to the club are more important.
The OmniStackers are a merger of the Dukes of Stackosphere 4iar club and the ZeroG Djinnis Zero G 4iar Club.
NB Wiki links will only work for club members.