January Challenge 2018
Rectangle, Partition the numbers, Maximum Score
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas
March Cook-off 2018 Division 2
Chef Judges a Competition, Chef Restores a Matrix, Chef Goes to the Cinema
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
May Lunchtime 2020 Division 2
Lost Weekends, Weird Walk
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
December Challenge 2020 Division 2
Even Pair Sum, Vaccine Production, Vaccine Distribution
January Challenge 2021 Division 3
Fair Elections, Encoded String, Point Of Impact, Chef and Division 3
April Challenge 2021 Division 3
Valid Pair, World Record, Strong Language
India