| When | User | Flag Type | Description |
|---|---|---|---|
| 2011-01-18 09:32:48 | adeus666 | Needs Fixing | first instruction says 'white to kill' but it's black to move |
| 2012-07-23 23:39:18 | hcsoso | Needs Fixing | |
| 2013-08-23 07:23:48 | sweet | Well Constructed | |
| 2013-09-06 07:15:27 | superrichi | Well Constructed | |
| 2014-03-02 07:30:11 | Arushena | Well Constructed | |
| 2014-10-28 17:13:50 | eurikano | Well Constructed | |
| 2015-12-31 23:42:40 | morvan01 | Well Constructed | |
| 2017-03-23 16:42:43 | gregdeon | Well Constructed | |
| 2017-05-18 14:23:51 | Onishi T | Needs Fixing | |
| 2018-12-02 09:24:49 | Aristotle | Needs Fixing | |
| 2019-12-11 19:55:57 | bentsea | Well Constructed |