| When | User | Flag Type | Description |
|---|---|---|---|
| 2013-12-06 02:30:28 | knorthplay | Well Constructed | |
| 2014-11-27 10:48:16 | mountain root | Well Constructed | |
| 2017-03-03 04:20:00 | BobTheJoe | Needs Fixing | There is an unmarked valid solution |
| 2019-08-15 19:34:39 | Starline | Well Constructed |