| Clue | Source | Date |
|---|---|---|
| Sofia's home: Abbr | LA Times Daily | 30 Jan 2022 |
| Sofia's home: Abbr | The Washington Post | 30 Jan 2022 |
| Country with Sofia as its capital, for short | ||
| Balkan state, briefly | ||
| Sofia's home (abbr.) | ||
| Republic in SE Europe (Abbr.) | ||
| Balkan land: Abbr. | ||
| Neighbor of Yugo. | ||
| Sofian: Abbr. | ||
| European country: Abbr. | ||
| Native of Sofia: Abbr. | ||
| Where Boris ruled: Abbr. | ||
| Soviet satellite: Abbr. |