| When | User | Flag Type | Description |
|---|
| 2008-12-15 18:42:07 | Hoskiss | Well Constructed | |
| 2013-02-28 03:39:42 | Thumb | Invalid | It's worse than "unnatural" to block out good moves. Try to build it so that only your prefered sequence works |
| 2013-04-30 10:52:23 | Matrok | Invalid | If there is an easy way, the problem is pointless. |
| 2013-07-26 03:05:16 | kuche12345 | Well Constructed | |
| 2014-06-01 22:34:39 | Micro102 | Well Constructed | |
| 2014-09-13 21:53:11 | nonsense | Invalid | |
| 2015-04-21 11:34:36 | kbk | Invalid | |
| 2017-07-27 09:03:27 | ranka | Invalid | |
| 2017-12-30 10:56:18 | Onishi T | Well Constructed | |
| 2018-04-10 16:58:11 | gomaster135 | Invalid | pointless problem if there is more than one way |
| 2019-10-02 00:35:42 | Starline | Invalid | -1 |