January Challenge 2015
Sereja and Votes, One Dimensional Kingdoms, Chef and Stones
February Challenge 2015
Let us play with rank list, Chef and Equality
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
April Challenge 2016
Chef and Ballons, Chef And Coloring
June Challenge 2016
Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
September Challenge 2016
Chef and digits of a number, Faded Palindromes
December Challenge 2016
Kirito in labyrinth, Train Partner
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
October Cook-Off 2016
Watson asks Does Permutation Exist
January Challenge 2017
Capital Movement, Cats and Dogs, Reservior
February Challenge 2017
Chef and His Apartment Dues, Gerrymander, Most Frequent Element, Chef and Triangles
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
August Cook-Off 2017
Real obtuse, From heaven to earth
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests, Chef and Happiness
India