September Challenge 2019 Division 2
Chef and Interesting Subsequences , Easy Fibonacci
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
April Challenge 2020 Division 2
Sell All the Cars, COVID Pandemic and Long Queue
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
June Challenge 2020 Division 2
The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Chef and Strings, Chef and Card Game, Missing a Point, Ada King, Chefina and Swaps
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess
July Cook-Off 2020 Division 2
Even-tual Reduction, OR-thodox Distinction
September Challenge 2021 Division 3 (Rated)
Travel Pass, Airline Restrictions
December Challenge 2021 Division 3 (Rated)
Utkarsh and Placement tests
June Long One 2022 Division 4 (Rated)
Chairs Requirement, Subscriptions, Alternate Additions, Equal Strings
Starters 89 Division 4 (Rated)
Monopoly, Plus 2 or Minus 1, Parliament, DDMM or MMDD
India