The Butterfly - (Region Sum/Renban Lines)
| Solver | Solution date |
|---|---|
| finger | on 11. October 2024, 05:30 |
| Krisonium | on 14. November 2023, 10:32 |
| Megalobrainiac | on 15. December 2022, 14:42 |
| TNGuy | on 11. November 2022, 11:59 |
| PippoForte | on 10. November 2022, 23:32 |
| yttrio | on 9. November 2022, 03:31 |
| ghosting | on 9. October 2022, 05:00 |
| Allagem | on 16. September 2022, 20:25 |
| bansalsaab | on 13. September 2022, 15:46 |
| Dentones | on 13. September 2022, 12:03 |
| jalebc | on 13. September 2022, 08:06 |
| SKORP17 | on 12. September 2022, 23:21 |
| AnalyticalNinja | on 12. September 2022, 21:30 |
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