August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
January Challenge 2020 Division 2
Breaking Bricks, Chef and Dynamo
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
January Cook-Off 2020 Division 2
Chef Chick, Exam Cheating
January Lunchtime 2020 Division 2
Chef and Street Food, Bob and His Friends
International Coding Marathon (Rated for all)
Lavanya Loves DFA, Mr Pr in a Dilemma
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Chefina and Swaps, Chef and Strings, Chef and Card Game, Doctor Chef, Missing a Point, Ada King
March Challenge 2021 Division 3
Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait
September Challenge 2021 Division 3 (Rated)
Shuffling Parities, Airline Restrictions, Travel Pass
India