Jacek :: Visited collections
| collection | solved levels | % |
| aenigma | 6 | 12 |
| Aruba | 2 | 0.8 |
| Atlas 01 | 4 | 4.3 |
| Atlas 10 | 6 | 6.2 |
| Boxxle | 4 | 1.8 |
| Cosmac | 1 | 0.2 |
| GRIGoRusha | 1 | 12.5 |
| Grigr Special | 2 | 5 |
| grigr2002 | 2 | 4.9 |
| Microban | 155 | 100 |
| Microban II | 101 | 76.5 |
| Microban III | 21 | 21 |
| Microban IV | 55 | 55 |
| Sasquatch | 2 | 4 |
| Thinking Rabbit | 2 | 4 |
| total | 364 | |
| collection | solved levels | % |
| MaliPerica | 1 | 50 |
| Rostami | 6 | 100 |
| verokio | 2 | 50 |
| total | 9 | |