June Challenge 2014
Guessing Game, Forgot Password, Chef and Subarray
July Challenge 2014
Count Substrings, Reach The Point
June Challenge 2016
Chef And The Hiring Event, Chef and Rectangle Array, Chef and New Game, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Chef and cities, Devu and an Array
July Challenge 2016
Chefland and Electricity, Chef and Robots Competition, Andrash and Stipendium, Chef and Tetris
August Challenge 2016
Chef and His Garden, Chef and Circle Run, Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and digits of a number, Chef and calculation, JosephLand, Faded Palindromes, Chef and Matrix Division, Chef and Friends
June Cook-Off 2016
Sticks, Right Triangle, Chef Land
India