| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| klo | Task Blocks | oi 17 e2 d1 | 307 | 59% | 72 |
| klp | Zadanie Klocki powracają | ontak 2008 | 8 | 62% | 76 |
| klr | Zadanie Klocki reaktywacja | ontak 2008 | 0 | ||
| kpk | Task The Right-Turn Drivers' Club | oi 2 e2 d0 | 130 | 80% | 92 |
| klu | Task Sport Clubs [A] | pa 2007 r4 a | 5 | 40% | 58 |
| kns | Task (K,N)-knight [B] | pa 2009 r2 b | 79 | 58% | 61 |
| koc | Task Blankets | amppz 2013 | 25 | 52% | 83 |
| kod | Task The Code | oi 16 e3 d2 | 6 | 33% | 58 |
| kod | Task Code | oi 7 e2 d2 | 59 | 88% | 92 |
| kod | Task Coding of Permutations | oi 2 e3 d0 | 224 | 75% | 85 |
| kol | Task Railways | oi 9 e1 | 766 | 79% | 89 |
| kol | Task Railway | oi 14 e3 d0 | 21 | 33% | 51 |
| kol | Zadanie Koło | math Very easy | 2330 | 80% | 88 |
| kol | Zadanie Koło | 2374 | 85% | 90 | |
| kol | Task Colouring | pa 2009 final | 30 | 90% | 90 |
| sal | Task Salesman | 4 | 50% | 77 | |
| kom | Task Byteasar the Travelling Salesman | oi 9 e1 | 688 | 86% | 92 |
| bit | Zadanie Komputery trzybitowe | ontak 2008 | 11 | 54% | 66 |
| ktb | Zadanie Komputery trzybitowe kontratakują | ontak 2008 | 0 | ||
| kon | Task Ticket Inspector | oi 16 e2 d1 | 296 | 78% | 84 |