Problems
Arena
Black and White
Life, like backgammon, is constant decision-making under uncertainty.
Condition Solved 3 or more problems in the Boardgame Cup481
Full Binary Christmas Tree
Condition Reach level 4 or deeper on the deepest ornament card in the Make a Tree event, 20221.1K
Walking Through the Winter Forest
To feel the beauty of snowflakes, one must endure the cold.
Condition Solved 1 or more problems in the Invitation of the Winter Forest466
ICPC World Finals Dhaka
Condition Participated in ICPC World Finals Dhaka Cheering Event871
IOI 2022 Indonesia
Condition Participated in the Cheering Event of IOI 2022 Korean Representatives1.5K
Midsummer Memories
Condition Achieve a score of over 1,800 in the Postcard Decoration Event 20221.4K
365 Days of Brilliance
Condition Achieve max streak of 365 days1K
Season 2021 — Silver I
Condition Reached Silver I in Season 20213.9K
Magician of the Library
Celebrated the 2nd anniversary of solved.ac
Condition Solve 1 or more previously unsolved problems between 6:00 AM on May 30, 2022 and 6:00 AM on June 6, 20229.7K
Green Matrix Grid: Dark Mode
More epic green matrix grid
Condition (Hidden)9.5K
200 Days of Diligence
Condition Achieve max streak of 200 days2.1K
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 shop2.7K
100 Days of Consistency
Condition Achieve max streak of 100 days4.3K
30 Days of Sincerity
Condition Achieve max streak of 30 days12K