| When | User | Flag Type | Description |
|---|---|---|---|
| 2015-06-24 17:06:58 | Smar | Well Constructed | |
| 2016-07-05 11:18:18 | StevenF | Needs Fixing | add extra solution |
| 2017-05-21 07:41:38 | Onishi T | Needs Fixing | |
| 2017-11-07 21:30:25 | Matrok | Well Constructed | |
| 2020-11-18 13:38:18 | 飛鏢小辣椒 | Needs Fixing | bad |