| Clue | Source | Date |
|---|---|---|
| River in Poland upon which Poznan stands | Mirror Quiz | 02 Aug 2024 |
| River in Poland upon which Poznan stands | Mirror Quiz | 13 Feb 2024 |
| Polish river | ||
| Oder feeder | ||
| Oder tributary | ||
| River south of Warsaw. | ||
| Oder tributary. | ||
| River into the Oder. | ||
| Polish tributary of the Oder. |