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Platinum IV
Problems
Unrated
Arena
lys1325Platinum IV
lys13254
Platinum IV 181684 until Platinum III
937 Solved4 Contributions14 Reverse rivals
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Date Added# Unlocked UsersTier
  • Level 1 Sprout
    Solved problems for 2 days in a row
    123K
  • Level 2 Sprout
    Level 2 Sprout
    Solved problems for 4 days in a row
    78K
  • Level 3 Sprout
    Level 3 Sprout
    Solved problems for 8 days in a row
    36K
  • Level 5 Sprout
    Level 5 Sprout
    Solved problems for 32 days in a row
    11K
  • Level 7 Sprout
    Level 7 Sprout
    Solved problems for 128 days in a row
    3.4K
  • Christmas Gift (2022)
    Christmas Gift (2022)
    Earn at least 5 gifts from the Make a Tree event, 2022
    725
  • Newbie Problem-solver
    Newbie Problem-solver
    Solve 10 problems
    149K
  • Beginner Problem-solver
    Beginner Problem-solver
    Solve 50 problems
    104K
  • Apprentice Problem-solver
    Apprentice Problem-solver
    Solve 100 problems
    65K
  • Skilled Problem-solver
    Skilled Problem-solver
    Solve 200 problems
    31K
  • Professional Problem-solver
    Professional Problem-solver
    Solve 500 problems
    6.5K
  • The 1st hjroh Cup (2023)
    The 1st hjroh Cup (2023)
    Solved 1 or more problems in the 1st hjroh Cup
    255
  • 2023 Chung-Ang University CHAC
    2023 Chung-Ang University CHAC
    Participated in 2023 Chung-Ang University CHAC, or achieved a score of over 10 in its open contest
    341
  • 2022 shake!
    2022 shake!
    Participated in 2022 shake!, or solved 1 or more problems in its open contest
    208
  • AI Network Scholarium I - 1 Solve
    AI Network Scholarium I - 1 Solve
    Solved 1 or more problems in AI Network Scholarium I
    118
  •  Dress Rehearsal (2023)
    Dress Rehearsal (2023)
    Achieved a score of over 41 in the Dress Rehearsal
    441
  • A yellow badge with a blue ribbon that seems to fit somewhere (2023)
    A yellow badge with a blue ribbon that seems to fit somewhere (2023)
    Solved a problem with ‘41’ in its ID, between 6:00 AM April 1, 2023 KST and 1:00 AM April 3, 2023 KST
    1.2K
  • 12