Participate as a jury, a tester, or a staff in the Arena

Participate as a jury, a tester, or a staff for 5 times in the Arena

Top 100 contributor by contributions count in the 2021 season

Maintain streak from June 5, 2022 to June 4, 2023

Met a developer of solved.ac at an event hosted or sponsored by solved.ac with 20+ participants

Achieved a score of over 100 in the 2023 KSA Automata Winter Contest

2023 KSA Automata Summer Contest에 출전해 100점 이상 달성

2024 KSA Automata Winter Contest에 출전해 100점 이상 달성