December Challenge 2015
Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters, Chef and the stones
February Challenge 2016
Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective
April Challenge 2016
Chef and Ballons, Game of snakes on a grid, Chef And Coloring, Chef And Magical Path, Devu and good strings, Fibonacci Queries, Help Watson Escape, Amazing Experiment
May Challenge 2016
Chef and Big Soccer, Laddu
June Challenge 2016
Chef and Array and K, Devu and an Array, Chef and cities, Chef and Coins Game, Chef and Rectangle Array, Chef And The Hiring Event, Chef And Binary Operation
July Challenge 2016
Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and special numbers, Chef and Robots Competition, Chefland and Electricity
August Challenge 2016
Chef and His Garden, Maximum Grid, Funny gnomes, Chef and Round Run, Chef and Chocolate, Chef and Circle Run
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
Bangladesh