ONPAPER
| Date | Clue |
|---|---|
| 2019-11-19 | Theoretically |
| 2016-11-24 | In theory |
| 2015-06-14 | Theoretically, at least |
| 2012-09-19 | Theoretically |
| 2010-03-11 | In theory |
| 2007-06-17 | Not oral |
| 2005-05-14 | Conjecturally |
| 2004-02-06 | Not necessarily real |
| 2001-05-25 | Theoretically |
| 1999-11-19 | Theoretically |