| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| kom | Liczby kompletne | oi 25 e3 d1 | 281 | 26% | 69 |
| kon | Task Ticket Inspector | oi 16 e2 d1 | 290 | 77% | 84 |
| kon | Kontrwywiad | oi 33 e2 d0 | 42 | 78% | 85 |
| kon | Kontenery | oi 24 e2 d2 | 1312 | 80% | 85 |
| kon | Konewka | oi 20 e2 d2 | 335 | 79% | 86 |
| kon | Zadanie Konspiracja | oi 18 e1 | 58 | 70% | 82 |
| kon | Konduktor | oi 25 e2 d1 | 363 | 50% | 58 |
| kop | Task Goldmine | oi 8 e3 d2 | 268 | 78% | 89 |
| kor | Korale | oi 23 e1 | 94 | 50% | 67 |
| kor | Task Beads | oi 17 e1 | 408 | 75% | 86 |
| kos | Zadanie Kości | oi 12 e2 d2 | 104 | 41% | 66 |
| kpk | Task The Right-Turn Drivers' Club | oi 2 e2 d0 | 129 | 79% | 92 |
| kra | Task The Disks | oi 13 e1 | 1651 | 77% | 84 |
| kry | Task Crystals | oi 13 e3 d1 | 21 | 61% | 78 |
| kry | Kryształ | oi 10 e3 d2 | 7 | 71% | 85 |
| kuc | Kucharz | dp bit oi 24 e3 d2 Medium | 203 | 59% | 65 |
| kul | Zadanie Kule | oi 3 e3 d1 | 35 | 40% | 63 |
| kup | Task Plot purchase | oi 15 e3 d1 | 132 | 69% | 76 |
| kur | Task Couriers | oi 21 e1 | 479 | 73% | 81 |
| kur | Zadanie Kurs szybkiego czytania | oi 22 e2 d2 | 188 | 40% | 53 |