Problems
Arena
30 Days of Sincerity
Condition Achieve max streak of 30 days11K
100 Days of Consistency
Condition Achieve max streak of 100 days4K
TRICK|TREAT 2021
Solved a problem in Halloween 2021
Condition Solved previously unsolved problem at between October 31st, 2021 06:00 and November 1st, 2021 06:00 (KST)2.6K
Pocky Day 2021
Solved a problem in Pocky day 2021
Condition Solved previously unsolved problem at between November 11th, 2021 06:00 and November 12th, 2021 06:00 (KST)3.3K
All Solve! — Bronze V
Condition Solved every Bronze V problem after November 30th, 20212.3K
Stars in the Evening Sky
She who has a star in her heart never gets lost in the dark
Condition Bought the background at the coin shop2.6K
Merry Christmas 2021
Solved a problem in Christmas or Christmas Eve 2021
Condition Solve 1 or more previously unsolved problems between 6:00 AM on December 24, 2021 and 6:00 AM on December 26, 20213.5K
Good Bye, BOJ 2021!
Good Bye, 2021!
Condition Solved 1 or more problems in Good Bye, BOJ 2021!646
Season 2021 — Gold II
Condition Reached Gold II in Season 20212.7K
시즌 2 골드 2
Condition 시즌 2에 골드 2 달성4.5K
시즌 3 골드 2
Condition 시즌 3에 골드 2 달성6K