August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures, Bad Shuffle
December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests, Max and Electrical Panel
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests, Chef and Happiness
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
June Challenge 2019 Division 2
Road Signs, Sum and GCD, Chef and Ingredients, Chef and Proxy, Guddu on a Date
August Challenge 2019 Division 2
Football, Distribute Apples
November Challenge 2019 Division 2
Physical Exercise, Hard Sequence, Weapon Value
October Challenge 2020 Division 2
Covid Run, Chef and Easy Queries, Positive AND
December Challenge 2020 Division 2
Even Pair Sum, Vaccine Distribution
April Challenge 2021 Division 3
Valid Pair, World Record, Strong Language
Cameroon