| Clue | Source | Date |
|---|---|---|
| Lake in southern Siberia which is the deepest in the world (6) | ||
| Deepest lake in the world, located in Siberia (6) | ||
| Russian lake, the world's largest by volume | The Guardian Weekend | 04 Mar 2023 |
| The world’s largest freshwater lake by volume | The Times Specialist Sunday | 23 Jun 2019 |
| Large Siberian lake | The Times Concise | 21 Aug 2015 |
| The world's largest freshwater lake | ||
| Siberia's great lake, largest freshwater basin in Eurasia. |