polski
| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| zam | Zadanie Zamieć | ontak 2013 | 4 | 25% | 37 |
| zar | Zadanie Żarłacz bitowy | ontak 2007 | 16 | 87% | 87 |
| zbi | Zadanie Zbiory | ontak 2008 | 3 | 66% | 66 |
| zga | Task Guessing Game | ontak 2007 | 11 | 63% | 75 |
| ula | Task The Lost Fraction | ontak 2007 | 5 | 0% | 32 |
| zim | Zadanie Zimne piwnice | ontak 2013 | 5 | 80% | 80 |
| zol | Task Nuts | ontak 2007 | 6 | 16% | 38 |
| zol | Zadanie Żółwie | ontak 2013 | 3 | 0% | 33 |