9 problems
| ID | Problem | Difficulty | Accepted | Solved | Status |
|---|---|---|---|---|---|
| 506 | 승차권 검표ticket-check | Bronze II | 69% | 41 | Not tried |
| 507 | 별점 테러rate-terror | Silver IV | 55% | 28 | Not tried |
| 510 | 자릿수 합분해digit-sum-decomposition | Platinum V | 35% | 11 | Not tried |
| 511 | 순열 LCApermutation-lca | Unrated | 0% | 1 | Not tried |
| 513 | 달빛 등대의 섬moonlight-lighthouse-island | Platinum III | 40% | 3 | Not tried |
| 516 | 회의실 예약 시스템 저격meeting-scheduler-hack | Gold III | 64% | 23 | Not tried |
| 517 | 슬라이딩 퍼즐sliding-puzzle | Gold V | 73% | 17 | Not tried |
| 518 | Tessellationtessellation | Silver III | 81% | 19 | Not tried |
| 519 | 제곱수^제곱수^제곱수square-square-square | Bronze III | 64% | 39 | Not tried |
