August Challenge 2015
Cooking Machine, Aditi and Magic Trick, Gravity Guy
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Rupsa and Equilateral Triangle, Spheres, Who dares to be a millionaire, Count Subarrays, Time measure
December Challenge 2015
Chef and the stones, Oracle Devu and Longest Common Subsequence
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
June Challenge 2016
Chef and Coins Game, Devu and an Array, Chef And Binary Operation, Chef and Array and K, Chef And The Hiring Event
July Challenge 2016
Andrash and Stipendium, Chefland and Electricity
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
India