Petrov :: Visited collections
| collection | solved levels | % |
| aenigma | 50 | 100 |
| A.K.K. Informatika | 23 | 71.9 |
| AC Easy | 13 | 65 |
| Aenigma arranged | 15 | 30.6 |
| classic | 1 | 2.4 |
| total | 102 | |
| collection | solved levels | % |
| aenigma | 50 | 100 |
| A.K.K. Informatika | 23 | 71.9 |
| AC Easy | 13 | 65 |
| Aenigma arranged | 15 | 30.6 |
| classic | 1 | 2.4 |
| total | 102 | |