September Challenge 2016
Faded Palindromes, Chef and calculation, Chef and digits of a number
May Challenge 2017
Chef and Sub Array , Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
July Challenge 2017
Whats in the Name, Calculator
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures, War of XORs
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game
India