December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
January Challenge 2019 Division 2
Chef and Modulo Game, Fancy Quotes, Distinct Pairs, Lucky Number Game
February Challenge 2019 Division 2
Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance, Deputy Chef
March Challenge 2019 Division 2
Chef got Recipes, Chef and a Beautiful Digit, Chef and Number Game
June Challenge 2019 Division 1
Lent Money, Chef and Ingredients, Sum and GCD
July Challenge 2019 Division 1
Hit the Coconuts, Guess the Prime!, Codechef War, Circular Merging
August Challenge 2019 Division 1
Dilemma, Zombie and the Caves, Distribute Apples, Football, Maximize an Expression, Encoding, Guddu and his Mother
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification, (Challenge) Maximizing LIS
India