December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Difficult Contests
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
February Cook-Off 2019 Division 2
Buying New Tablet, Chef and Party
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
January Challenge 2021 Division 3
Chef and Division 3, Encoded String
June Lunchtime 2021 Division 3
False Number, HTML Tags, Richie Rich
July Challenge 2021 Division 3 (Rated)
Maximum Production, Relativity
India