December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
October Challenge 2018 Division 2
Byte to Bit, Chef and Serves
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
June Challenge 2019 Division 2
Road Signs, Guddu on a Date, Chef and Proxy
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
July Challenge 2019 Division 2
Guess the Prime!, Minimum and Maximum, Chef and Mean
July Cook-Off 2019 Division 2
Playing with Strings, Birthday Gift Again
August Challenge 2019 Division 2
Guddu and his Mother, Dilemma, Football, Distribute Apples
September Mega Cook-Off 2019 Division 2
Two Groups, Playing with Matches
February Lunchtime 2021 Division 3
Daanish and Problems, Palpal Strings, Smallest Possible Whole Number, Coprime Range
March Lunchtime 2021 Division 3
Turn It, Lunchtime, Racing, Make the Sum Even, Motivation, Dinner by Candlelight
April Cook-Off 2021 Division 2
Tree Distances, OR of ANDs, Chocolate Monger
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
India