Quattroquadri: Toroidal X-Sums
| Solver | Solution date |
|---|---|
| MSDOS | on 28. January 2026, 03:57 |
| Andrewsarchus | on 25. January 2026, 09:38 |
| smc15503 | on 11. September 2025, 19:37 |
| tuoni2 | on 6. August 2025, 22:55 |
| MattJones | on 31. July 2025, 17:26 |
| jordanza | on 17. July 2025, 02:21 |
| schnitzl | on 16. July 2025, 00:23 |
| fthompson | on 15. July 2025, 17:03 |
| ole-1995a | on 15. July 2025, 16:26 |
| SparklePuzzle | on 12. July 2025, 22:20 |
| shifman23 | on 11. July 2025, 19:30 |
| sarabtx | on 11. July 2025, 18:18 |
| kublai | on 11. July 2025, 16:07 |
| Julianl | on 11. July 2025, 12:41 |
| AKernel | on 10. July 2025, 20:19 |
| autumnsky544 | on 10. July 2025, 18:13 |
| jinkela114514 | on 10. July 2025, 11:52 |
| farodin64 | on 10. July 2025, 10:24 |
| Calesch | on 10. July 2025, 08:01 |
| jkuo7 | on 10. July 2025, 07:59 |
| gdc | on 10. July 2025, 04:24 |
| MaxSmartable | on 10. July 2025, 03:56 |
| Jesper | on 10. July 2025, 00:19 |
| SeveNateNine | on 9. July 2025, 20:26 |
| andreatetta | on 9. July 2025, 18:12 |
| SKORP17 | on 9. July 2025, 17:34 |
| jalebc | on 9. July 2025, 17:33 |
| maniacaljackal | on 9. July 2025, 16:06 |
| ananth | on 9. July 2025, 16:02 |
| Fisherman | on 9. July 2025, 15:38 |
| Malakree | on 9. July 2025, 15:09 |
| Flinty | on 9. July 2025, 15:07 |
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