(the system of) Dr. Tarr & Prof. Fether
| Solver | Solution date |
|---|---|
| kangaroo | on 26. September 2026, 11:32 |
| Zzzzz... | on 29. May 2026, 13:01 |
| Leaving Leaves | on 13. May 2026, 19:24 |
| AKropki | on 1. April 2026, 00:57 |
| RadchenkoAleksandr | on 29. November 2025, 12:22 |
| annnz | on 11. October 2024, 07:24 |
| Isfan | on 2. October 2024, 18:04 |
| atomvic | on 2. October 2024, 17:45 |
| jadezki | on 2. October 2024, 01:41 |
| arteful | on 2. October 2024, 01:07 |
| SKORP17 | on 1. October 2024, 18:27 |
| kroutu | on 1. October 2024, 13:30 |
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