December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
July Challenge 2020 Division 2
Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Another Card Game Problem, Chef and Linear Chess
March Challenge 2021 Division 3
Chef and Groups, No Time to Wait
July Challenge 2021 Division 3 (Rated)
Maximum Production, Relativity, XxOoRr
August Challenge 2021 Division 3 (Rated)
Problem Difficulties, Olympics Ranking
September Challenge 2021 Division 3 (Rated)
Shuffling Parities, Airline Restrictions, Travel Pass
December Challenge 2021 Division 3 (Rated)
Valleys and Hills, List of Lists, Utkarsh and Placement tests
February Long 2022 - II, Division 3 (Rated)
Avoid Fixed Points, World Chess Championship, Chef and NextGen, Xor Palindrome
May Long Two 2022 Division 3 (Rated)
Score High, Degree of Polynomial
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