October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
November Challenge 2014
Distinct Characters Subsequence
March Challenge 2015
Chef and Notebooks, Sign Wave
May Challenge 2015
Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Chef and Memory Limit, Chef and Polygons, Chef and His Friend, Steady tables
August Challenge 2015
Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia
October Challenge 2015
Rupsa and Equilateral Triangle, Cyclic shifts in permutation, Spheres, Count Subarrays, Time measure, Who dares to be a millionaire
December Challenge 2015
Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters, Chef and Girls
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
May Challenge 2016
Chef and Big Soccer, Laddu, Forest Gathering
August Challenge 2016
Chef and His Garden, Chef and Circle Run, Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation
India