| #19901 | Distributing Ballot BoxesSWERC 2011 | |
| #19902 | Game, Set and MatchSWERC 2011 | |
| #19903 | Guess the NumbersSWERC 2011 | |
| #19904 | Non-negative Partial SumsSWERC 2011 | |
| #19905 | Peer ReviewSWERC 2011 | |
| #19906 | Regular Convex PolygonSWERC 2011 | |
| #19907 | RemotelandSWERC 2011 | |
| #19908 | BeehivesSWERC 2012 | |
| #19909 | Bits EqualizerSWERC 2012 | |
| #19910 | LCM Pair SumSWERC 2012 | |
| #19911 | RNA Secondary StructureSWERC 2012 | |
| #19912 | Old School DaysSWERC 2012 | |
| #19913 | Sentry RobotsSWERC 2012 | |
| #19914 | How Do Spiders Walk on Water?SWERC 2012 | |
| #19915 | SharesSWERC 2012 | |
| #19916 | The Moon of ValenciaSWERC 2012 | |
| #19917 | CountdownSWERC 2012 | |
| #19918 | 369KOI 2019 | |
| #19919 | 볼 모으기KOI 2019 | |
| #19920 | 등수 찾기KOI 2019 | |
| #19921 | 로봇KOI 2019 | |
| #19922 | 신기한 수KOI 2019 | |
| #19923 | 개구리 점프KOI 2019 | |
| #19924 | 드론KOI 2019 | |
| #19925 | 물채우기KOI 2019 | |
| #19926 | 타일 교체KOI 2019 | |
| #19927 | 괄호KOI 2019 | |
| #19928 | 검은 돌KOI 2019 | |
| #19929 | 고압선KOI 2019 | |
| #19930 | 수 고르기KOI 2020 | |
| #19931 | 종이접기KOI 2020 | |
| #19932 | 등산 마니아KOI 2020 | |
| #19933 | 사탕 돌리기KOI 2020 | |
| #19934 | 버블버블KOI 2020 | |
| #19935 | 화려한 정사각형KOI 2020 | |
| #19936 | 줄임말KOI 2020 | |
| #19937 | 순서 섞기KOI 2020 | |
| #19938 | 경계 로봇KOI 2020 | |
| #19939 | 사각형 면적KOI 2021 | |
| #19940 | 계산 로봇KOI 2021 | |
| #19941 | 괄호의 값 비교KOI 2021 | |
| #19942 | 그래프 균형 맞추기KOI 2021 | |
| #19943 | 누적 거리KOI 2021 | |
| #19944 | 일이 이어져야 좋다KOI 2021 | |
| #19945 | 공통 괄호 문자열 사전KOI 2021 | |
| #19946 | 헬기 착륙장KOI 2021 | |
| #19947 | 가장 긴 공통 괄호 문자열KOI 2021 | |
| #19948 | 맛집 추천KOI 2021 | |
| #19949 | 제자리KOI 2022 | |
| #19950 | 카드 바꾸기KOI 2022 | |
| #19951 | 트리와 쿼리KOI 2022 | |
| #19952 | 빨강파랑KOI 2022 | |
| #19953 | 주차타워KOI 2022 | |
| #19954 | 레벨 업KOI 2022 | |
| #19955 | 식사 계획 세우기KOI 2022 | |
| #19956 | 외곽 순환 도로KOI 2022 | |
| #19957 | 불안정한 수열KOI 2023 | |
| #19958 | 스케이트 연습KOI 2023 | |
| #19959 | 호숫가의 개미굴KOI 2023 | |
| #19960 | 고기 파티KOI 2023 | |
| #19961 | 지그재그KOI 2023 | |
| #19962 | 잔디밭의 개미굴KOI 2023 | |
| #19963 | 바보 자물쇠KOI 2023 | |
| #19964 | 보물찾기KOI 2024 | |
| #19965 | 가로등KOI 2024 | |
| #19966 | 색깔 모으기KOI 2024 | |
| #19967 | 양손에 VKOI 2024 | |
| #19968 | XOR 최대KOI 2024 | |
| #19969 | 트리 뽑아내기KOI 2024 | |
| #19970 | 점수 경주KOI 2024 | |
| #19971 | Colourful GraphHong Kong Regional 2016 | |
| #19972 | DoorsHong Kong Regional 2016 | |
| #19973 | Playing with NumbersHong Kong Regional 2016 | |
| #19974 | Peak TramHong Kong Regional 2016 | |
| #19975 | Peak TowerHong Kong Regional 2016 | |
| #19976 | Perfect k-ary TreeHong Kong Regional 2016 | |
| #19977 | ScaffoldingHong Kong Regional 2016 | |
| #19978 | Slim CutHong Kong Regional 2016 | |
| #19979 | Special TourHong Kong Regional 2016 | |
| #19980 | TabooHong Kong Regional 2016 | |
| #19981 | Team UpHong Kong Regional 2016 | |
| #19982 | Automatic Control MachineTaipei Regional 2018 | |
| #19983 | No TabsTaipei Regional 2018 | |
| #19984 | Starlight on the StageTaipei Regional 2018 | |
| #19985 | Dictionary ProblemTaipei Regional 2018 | |
| #19986 | Pairing Points in Three-Dimensional SpacesTaipei Regional 2018 | |
| #19987 | Will You Save Us?Taipei Regional 2018 | |
| #19988 | Minimum Shipping CostTaipei Regional 2018 | |
| #19989 | Hidden GlyphsTaipei Regional 2018 | |
| #19990 | Protein StructuresTaipei Regional 2018 | |
| #19991 | Mean Weight of a Critical CycleTaipei Regional 2018 | |
| #19992 | Monochrome LandTaipei Regional 2018 | |
| #19993 | Add and Reverse | |
| #19994 | Analyze This | |
| #19995 | Bipartite Graph | |
| #19996 | Bridge Building | |
| #19997 | Child's Game with Robot | |
| #19998 | Quadruples of Points | |
| #19999 | Mosaic Tracery | |
| #20000 | List of Powers | |