March Challenge 2018 DIV 2
Chef and Glove, A Big Sale
March Cook-off 2018 Division 2
Chef Judges a Competition
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
October Challenge 2018 Division 2
Byte to Bit, Chef and Serves
January Challenge 2019 Division 2
Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
February Challenge 2019 Division 2
Art of Balance, Deputy Chef, Appy and Contest, Chef and Magical Jars, Manhattan Rectangle, Chef and Secret Ingredients
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Subtree Removal, Fencing
October Challenge 2019 Division 1
(Challenge) Maximizing LIS, Array Modification, Chef and Maximum Star Value, Even Edges
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Leaked Answers (Challenge)
September Challenge 2020 Division 2
Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2
August Lunchtime 2020 Division 2
Game on a Strip, Mode of Frequencies, Ratings and Rankings
India