| Solved date | Sudoku of | Level | your time |
|---|---|---|---|
| 19th of Sep 2010 | 30th of Oct 2020 | very hard | 52:26 |
| 25th of Apr 2010 | 27th of Apr 2021 | hard | 28:22 |
| 20th of Jan 2010 | 29th of Sep 2021 | hard | 16:51 |
| 16th of Dec 2009 | 23rd of Jun 2021 | very hard | 25:26 |
| 13th of Dec 2009 | 15th of Apr 2021 | very hard | 25:56 |