October Challenge 2014
Magical Girl and Colored Liquid Potions, Chef and Ground
January Challenge 2015
Sereja and Votes, Gcd Queries, Chef and Stones
February Challenge 2015
Chef and Chain, Chef and Equality
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
May Challenge 2015
Chef and Prime Divisors, Chef and new recipe
July Challenge 2015
Chef and Cube, Na2a and lucky stone, Bread
August Challenge 2015
Gravity Guy, Cooking Machine, Aditi and Magic Trick
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Rupsa and Equilateral Triangle
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
January Long Challenge 2016
Churu and Balls, Chef and Time Machine, Devu and Perfume, Rupsa and the Game
February Challenge 2016
Sereja and Two Lines, Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective
June Challenge 2016
Chef And Binary Operation, Devu and an Array, Chef and Coins Game, Chef and Array and K, Chef and Rectangle Array, Chef And The Hiring Event
July Challenge 2016
Andrash and Stipendium, Chef and Tetris, Chefland and Electricity
September Challenge 2016
Chef and Friends, Chef and digits of a number, Faded Palindromes, Chef and calculation
India