| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Mon, Nov 11, 2019 | 64A | Research institute ... or, when read as a direction, a hint to the ends of the answers to the starred clues | Evan Kalish | Shortz |
| Mon, Nov 09, 2009 | 57A | Problem-solving research institute | Lynn Lempel | Shortz |