June Challenge 2014
Chef and Subarray, Guessing Game
September Challenge 2014
Chef and Left-Right, Fun with Rotation
October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus
January Challenge 2015
Sereja and Votes, Chef and Stones
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Let us play with rank list, Chef and Equality
May Challenge 2015
Set Difference , Chef and new recipe
August Challenge 2015
Gravity Guy, Cooking Machine
October Challenge 2015
Time measure, Who dares to be a millionaire, Count Subarrays
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
October Cook-Off 2015
Almost Sorted Permutation
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
June Challenge 2016
Chef and Coins Game, Devu and an Array, Chef And Binary Operation
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, Chef and a Beautiful Digit
India