Arena: 3rd Place Participate as a rated contestant in the Arena and achieve third place
23
Arena: All Solve Participate as a rated contestant in the Arena and get full score for every problem
39
Arena: Half Solves ร 5 Participate as a rated contestant for 5 times in the Arena and get full score for half or more of the problems in the contest
62
Top Contributor, Season 2021 Top 100 contributor by contributions count in the 2021 season
100
Arena: Top 10 Participate as a rated contestant in the Arena and achieve a rank of top 10 or greater
151
Creator of Balance - Platinum Achieve a rating of 1600 or higher for all 8 tags displayed on the profile
182
Arena: Quarter Solves ร 5 Participate as a rated contestant for 5 times in the Arena and get full score for quarter or more of the problems in the contest
189
Arena: Top 20 Participate as a rated contestant in the Arena and achieve a rank of top 20 or greater
246
2024๋ ์ BOJ์ ํจ๊ปํ Hello, BOJ 2024! ํน์ Open Contest์ ์ถ์