December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive XOR, Chef and Meatballs, Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2019 Division 2
Distinct Pairs, A Pizza Slice, Fancy Quotes, Chef and Modulo Game, Lucky Number Game, Different Neighbours, Yet Another Problem About Sequences
February Challenge 2019 Division 2
Guess It Right, Deputy Chef, Art of Balance, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Manhattan Rectangle
May Challenge 2019 Division 2
Matches, Reduce to One, Where to Build the Roads
August Challenge 2019 Division 1
Guddu and his Mother, Dilemma
November Challenge 2019 Division 2
Physical Exercise, Hard Sequence, Smallest Beautiful Number, Weapon Value, Chef and Minimum Colouring
