DTMF (Dual Tone Multi-Frequency)
| Solver | Solution date |
|---|---|
| snuuba | on 30. August 2025, 20:28 |
| Elainejyl | on 8. June 2025, 19:00 |
| Megalobrainiac | on 4. June 2025, 19:54 |
| Ulistef | on 12. May 2025, 20:33 |
| SincereEngineer | on 16. April 2025, 03:36 |
| han233ing | on 9. April 2025, 07:46 |
| mikepautov | on 7. April 2025, 21:15 |
| Clara123 | on 6. April 2025, 13:39 |
| Brodie2000 | on 1. April 2025, 21:25 |
| MaxSmartable | on 29. March 2025, 07:47 |
| cryptique | on 25. March 2025, 16:00 |
| bodemeister | on 25. March 2025, 00:55 |
| Marshal on Mars | on 24. March 2025, 22:41 |
| Da Letter El | on 24. March 2025, 21:57 |
| lmdemasi | on 24. March 2025, 19:30 |
| SKORP17 | on 24. March 2025, 16:10 |
| jalebc | on 24. March 2025, 08:17 |
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