| Solved date | Sudoku of | Level | your time |
|---|---|---|---|
| 23rd of Apr 2010 | 7th of Jan 2021 | very hard | 27:55 |
| 11th of Apr 2010 | 5th of Aug 2021 | very hard | 32:44 |
| 6th of Mar 2010 | 22nd of Feb 2021 | very hard | 36:18 |
| 3rd of Mar 2010 | 31st of Jan 2021 | very hard | 35:13 |
| 10th of Feb 2010 | 2nd of Jul 2020 | very hard | 30:40 |
| 8th of Feb 2010 | 24th of Aug 2020 | very hard | 30:44 |
| 5th of Feb 2010 | 25th of Oct 2021 | very hard | 41:14 |
| 14th of Jan 2010 | 13th of Jun 2020 | very hard | 27:49 |
| 10th of Jan 2010 | 3rd of Apr 2021 | very hard | 37:10 |
| 11th of Nov 2009 | 13th of Dec 2020 | very hard | 24:33 |
| 28th of Oct 2009 | 29th of Oct 2020 | very hard | 24:30 |
| 15th of Oct 2009 | 19th of May 2020 | very hard | 26:11 |
| 11th of Oct 2009 | 31st of Jul 2021 | very hard | 35:21 |
| 10th of Oct 2009 | 15th of Apr 2021 | very hard | 34:41 |