August Challenge 2015
Gravity Guy, Way Out, Cooking Machine
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix, Bank robbery, Lighthouses, Cracking the Code
October Challenge 2015
Time measure, Count Subarrays, Spheres, Rupsa and Equilateral Triangle
November Challenge 2015
Eugene and function, Chef and cakes, Chef and collection of stamps, Ingredients
December Challenge 2015
Chef and the stones, Plane Division, Chef and Filters
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
September Mega Cook-Off 2015
Forgotten Language, Stacks
July Lunchtime 2015
Greedy puppy, Puppy and game
November Lunchtime 2015
Query over Matrix, Black And White Cells
January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
April Challenge 2016
Help Watson Escape, Fibonacci Queries, Chef and Ballons, Chef And Magical Path, Chef And Coloring
May Challenge 2016
Chef and Balls, Laddu, Chef and Big Soccer, Forest Gathering
June Challenge 2016
Chef And The Hiring Event, Chef And Binary Operation, Devu and an Array
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
Japan