December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive XOR, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
Encoder (Rated for Division 2)
Knight Chess, Second Largest Element
January Challenge 2019 Division 2
A Pizza Slice, Fancy Quotes, Chef and Modulo Game, Distinct Pairs, Lucky Number Game, Different Neighbours, Yet Another Problem About Sequences
April Cook-Off 2019 Division 2
Pied Piper vs Hooli, Making a Meal, Chef Learning Hungarian Algorithm
December Challenge 2019 Division 2
Chefina and Ranges, Plus Multiply, Binary XOR, Easy Subsequence Selection, Sticky Notes, (Challenge) Cubical Virus, That Is My Score!, Addition
India