Problems
Arena
The Art of Analysis
After a bad opening, there is hope for the middle game. After a bad middle game, there is hope for the endgame. But once you are in the endgame, the moment of truth has arrived.
Condition Solved 7 or more problems in the Boardgame Cup105
The Entrepreneur's Guide to Mars
Coming to Mars was a big step. Making it habitable will give us a new world.
Condition Solved 5 or more problems in the Boardgame Cup262
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
2022 1st Calculus, Probability, and Statistics Cup
Condition Solved 1 or more problems in the 2022 1st Calculus, Probability, and Statistics Cup360
2022 Seoul Cyber University Programming Contest
Condition Participated in 2022 Seoul Cyber University Programming Contest, or solved 1 or more problems in its open contest340
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
Sogang Programming Contest 2022
Be as proud of Sogang as Sogang is proud of you.
Condition Participated in Sogang Programming Contest 2022292
Chung-Ang University Programming Contest 2022
Condition Participated in Chung-Ang University Programming Contest 2022, or solved 2 or more problems in its open contest218
IOI 2022 Indonesia
Condition Participated in the Cheering Event of IOI 2022 Korean Representatives1.5K
Good Game Well Played
Competitive programming is a game. The Semi-Game Cup is a CP competition. The Semi-Game Cup is therefore a game competition.
Condition Solved 1 or more problems in Semi-Game Cup 3171
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 days1.1K
Season 2021 — Diamond II
Condition Reached Diamond II in Season 202165
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
Goms Party
Condition Solved 1 or more problems in the 1st Gomgom Cup591
Icons: Dark Mode
Icons in solved.ac, now in dark mode.
Condition (Hidden)4.9K
Green Matrix Grid: Dark Mode
More epic green matrix grid
Condition (Hidden)10K
The 1st Silver Cup
Condition Solved 1 or more problems in the 1st Silver Cup127
Formula Completion Game
4 1 5 5 5 = 38
Condition Participated in the 1st Silver Cup215