November Challenge 2014
Distinct Characters Subsequence
February Challenge 2015
Chef and Chain, Let us play with rank list
April Challenge 2015
Broken Telephone, Chef and Piano Scales
August Challenge 2015
Aditi and Magic Trick, Cooking Machine, Gravity Guy
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Who dares to be a millionaire
April Cook-Off 2015
Equality, Version Control System
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
January Long Challenge 2016
Churu and Balls, Devu and Perfume, Chef and Time Machine
March Challenge 2016
Palindromic substrings, maximize the sum
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Fenwick Iterations, Chef and Three Dogs, Chef and Keyboard, Sereja and Progressions
October Cook-Off 2016
Watson asks Does Permutation Exist, ChefWatson uses Social Network
February Challenge 2017
Chef and His Apartment Dues
India