The Backbone (Double the Math)
| Solver | Solution date |
|---|---|
| Lizzy01 | on 22. April 2022, 14:22 |
| SirWoezel | on 11. August 2021, 14:47 |
| Ragna | on 6. June 2021, 17:43 |
| matzrh | on 6. June 2021, 12:02 |
| filuta | on 5. June 2021, 19:28 |
| marcmees | on 4. June 2021, 21:26 |
| SKORP17 | on 4. June 2021, 17:29 |
| Danica | on 4. June 2021, 17:23 |
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