| Clue | Source | Date |
|---|---|---|
| Has a comparable effect when American uncle and sweetheart have disagreement | ||
| Six of one, half dozen of the other | Universal | 17 Nov 2020 |
| x - y = x - y | New York Times | 10 Mar 2019 |
| x - y = x - y | ||
| Identical - indistinguishable? | ||
| "Six of one, half a dozen of the other" (and this puzzle's theme) |