| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Thu, Sep 15, 2011 | 37A | Mathematical subgroups | Samuel A. Donaldson | Shortz |
| Thu, Oct 28, 2010 | 5D | Math groups | David J. Kahn | Shortz |
| Fri, Feb 02, 2007 | 53D | Mathematical groups | David J. Kahn | Shortz |
| Tue, Mar 31, 1998 | 22A | Math groups | Alan Arbesfeld | Shortz |