| Clue | Source | Date |
|---|---|---|
| Eco-friendly request ... and a hint to sorting out the aptly circled letters | LA Times Daily | 07 Nov 2017 |
| Eco-friendly request ... and a hint to sorting out the aptly circled letters | The Washington Post | 07 Nov 2017 |
| Eco-friendly request ... and a hint to sorting out the aptly circled letters |