July Challenge 2015
Na2a and lucky stone, Chef and Cube, Bread
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick
October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Rupsa and Equilateral Triangle
December Challenge 2015
Plane Division, Oracle Devu and Longest Common Subsequence, Chef and the stones
January Long Challenge 2016
Sereja and Salesman, Chef and Time Machine
April Challenge 2016
Chef and Ballons, Chef And Magical Path, Chef And Coloring
June Challenge 2016
Chef And The Hiring Event, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
India