| ID | Problems | Difficulty | Accepted | Solves | Status |
|---|---|---|---|---|---|
| 1 | Lemon Gamelemongame | Silver VS5 | — | 136 | Not tried |
| 2 | Lemon chandeliercoloring | Diamond IVD4 | — | 15 | Not tried |
| 3 | Lemony Snicket's Dangerous Duel |
| Ruby VR5 |
| — |
| 19 |
| Not tried |
| 8 | roadsroads | Ruby VR5 | — | 10 | Not tried |
| 13 | flowerflower | Platinum IIIP3 | — | 13 | Not tried |
| 27 | tree-pairingtree-pairing | Platinum IIP2 | — | 7 | Not tried |
| 34 | composecompose | Gold IIG2 | — | 27 | Not tried |
| 35 | snakesnake | Platinum IIIP3 | — | 23 | Not tried |
| 46 | treetree | Platinum IVP4 | — | 7 | Not tried |
| 48 | permutationpermutation | Platinum IVP4 | — | 18 | Not tried |
| 66 | 3sum3sum | Platinum IVP4 | — | 18 | Not tried |
| 71 | increasingincreasing | Gold IVG4 | — | 21 | Not tried |
| 79 | wooldyeingwooldyeing | Platinum IVP4 | — | 7 | Not tried |
| 81 | cubesumcubesum | Gold IG1 | — | 9 | Not tried |
| 83 | ronaldoronaldo | Gold IVG4 | — | 31 | Not tried |
| 88 | Making a Monochrome Stringmonochrome | Platinum IVP4 | — | 21 | Not tried |
| 99 | Baseball Fansbaseballfanplast | Gold IIG2 | — | 6 | Not tried |
| 111 | jkrt's ANDjkrt-and | Gold IVG4 | — | 12 | Not tried |
| 116 | 간단한 확률 문제simple | Gold IIG2 | — | 21 | Not tried |
| 117 | 디도스ddos | Platinum IVP4 | — | 14 | Not tried |
