ACHT
| Date | Clue |
|---|---|
| 2026-05-03 | Zwei quadrupled |
| 2025-08-03 | Beethoven's No. 8? |
| 2023-10-31 | Eight, in Essen |
| 2021-01-27 | Fünf + drei |
| 2017-06-25 | German digit |
| 2017-04-09 | Drei + fünf |
| 2014-11-11 | Eight, to Dieter |
| 2014-02-23 | Vier + vier |
| 2013-10-16 | Zwei cubed |
| 2013-02-09 | Number of Planeten |
| 2011-05-21 | Half of sechzehn |
| 2010-09-01 | Number after sieben |
| 2009-12-03 | Zwei x vier |
| 2009-10-11 | Berlin octet |
| 2000-09-17 | Sieben follower |
| 1999-11-14 | Fünf und drei |
| 1999-08-22 | One more than sieben |
| 1998-10-29 | Sieben follower |
| 1996-12-07 | Zwei cubed |
| 1995-06-12 | Number after sieben |
| 1995-06-06 | Eight, to Hans und Franz |