| When | User | Flag Type | Description |
|---|---|---|---|
| 2009-07-16 00:47:22 | inpefess | Well Constructed | |
| 2012-07-16 06:04:27 | nayuta | Needs Fixing | Second way to cause a ladder isn't in the solutions. |
| 2012-09-19 12:16:34 | NotDomo | Well Constructed | |
| 2013-08-24 14:56:54 | ragtag | Needs Fixing | q18 solves |
| 2014-03-18 16:20:11 | Plucho | Well Constructed | |
| 2015-02-22 23:05:22 | artemka1 | Duplicate | 219 |
| 2017-01-22 01:30:14 | GKomoku | Well Constructed | |
| 2022-10-23 12:18:59 | lattice | Well Constructed |