costas :: Visited collections
| collection | solved levels | % |
| Atlas 10 | 6 | 6.2 |
| Boxxle | 2 | 0.9 |
| classic | 8 | 19.5 |
| Cosmac | 34 | 6 |
| Erim Sever | 17 | 6.5 |
| Spiros sets | 130 | 14.7 |
| total | 197 | |
| collection | solved levels | % |
| Atlas 10 | 6 | 6.2 |
| Boxxle | 2 | 0.9 |
| classic | 8 | 19.5 |
| Cosmac | 34 | 6 |
| Erim Sever | 17 | 6.5 |
| Spiros sets | 130 | 14.7 |
| total | 197 | |