| Clue | Source | Date |
|---|---|---|
| Russian opposition leader Navalny | Wall Street Journal | 21 May 2026 |
| Soviet premier Kosygin | Eugene Sheffer | 26 Sep 2025 |
| First spacewalker Leonov | ||
| Soviet premier Kosygin | ||
| Soviet premier Kosygin | ||
| Leonov who was the first man to walk in space | ||
| Soviet premier Kosygin | ||
| Kosygin of the Soviet Union | ||
| Czar Nicholas II's heir | ||
| Comrade Kosygin |