CIR
| Date | Clue |
|---|---|
| 2022-11-04 | Geom. figure |
| 2015-11-01 | Street sign abbr. |
| 2014-03-23 | Geometry fig. |
| 2011-08-18 | Geom. figure |
| 2011-08-14 | Part of a cul-de-sac address, maybe: Abbr. |
| 2010-12-06 | Round fig. |
| 2009-05-27 | Diam. x pi |
| 2009-03-20 | Abbr. on a residential street sign |
| 2009-02-22 | Geometric fig. |
| 2008-02-03 | Geom. figure |
| 2007-04-15 | Geom. figure |
| 2004-05-21 | Alternative to Pl. or Ct. |
| 2004-04-02 | Geom. figure |
| 2003-02-23 | Geometric fig. |
| 2002-10-15 | Geometric fig. |
| 2001-12-08 | Street sign abbr. |
| 2000-08-07 | Geom. figure |
| 1999-05-14 | Equator, e.g.: Abbr. |
| 1998-02-01 | Columbus, for one: Abbr. |
| 1996-04-20 | Geom. figure |
| 1995-03-31 | Round: Abbr. |
| 1995-01-29 | Geom. figure |