December Challenge 2018 Division 2
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
Lucky Number Game, Fancy Quotes
February Challenge 2019 Division 2
Chef and Secret Ingredients, Appy and Contest, Deputy Chef
July Challenge 2019 Division 2
Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Dilemma, Distribute Apples, Football
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
April Lunchtime 2020 Division 2
Another Birthday Present!, Chef in Fantasy League
April Challenge 2021 Division 3
Chef and Dice, Valid Pair, World Record, Strong Language
April Cook-Off 2021 Division 3
Bodybuilder, Passing Marks, Chocolate Monger
India