| Solved date | Sudoku of | Level | your time |
|---|---|---|---|
| 17th of Apr 2010 | 30th of Oct 2020 | very hard | 29:42 |
| 21st of Feb 2010 | 28th of Jul 2020 | very hard | 39:25 |
| 16th of Feb 2010 | 15th of Apr 2020 | very hard | 26:19 |
| 16th of Feb 2010 | 12th of Mar 2021 | hard | 21:40 |
| 19th of Sep 2009 | 17th of Jun 2020 | very hard | 17:52 |