| Unofficial means of communication (4,7) |
The Guardian Quick |
15 Jun 2024 |
| CBA |
LA Times Daily |
28 May 2021 |
| CBA |
The Washington Post |
28 May 2021 |
| Unofficial means of communication |
Wall Street Journal |
13 Jan 2021 |
| Unofficial means of communication |
The Washington Post |
28 Oct 2020 |
| Unofficial means of communication |
LA Times Daily |
28 Oct 2020 |
| Covert means of communication ... or what's hiding in the circled letters? |
New York Times |
28 Aug 2018 |
| Covert means of communication ... or what's hiding in the circled letters? |
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| Unofficial means of communication, and a hint to each set of circled letters |
LA Times Daily |
16 May 2017 |
| Unofficial means of communication, and a hint to each set of circled letters |
The Washington Post |
16 May 2017 |
| Unofficial means of communication, and a hint to each set of circled letters |
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