February Challenge 2015
Let us play with rank list, Chef and Chain, Chef and Equality
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Chef and Piano Scales
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick
September Challenge 2015
Lighthouses, Count Steps in Matrix, Chain of Doughnuts
November Challenge 2015
Eugene and function, Chef and cakes
April Cook-Off 2015
Equality, Version Control System
August Lunchtime 2015
Churu and lost string, Minimum Maximum
September Lunchtime 2015
Sum of palindromic numbers
February Challenge 2016
Chef-Detective, Rectangles of Love, Devu and a light discussion, Sereja and Two Lines, Chef and Strange Operations
March Challenge 2016
Sereja and Two Strings 2, Palindromic substrings, maximize the sum, Chef And Special Dishes
June Challenge 2016
Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
October Cook-Off 2016
Sherlock and the Ugly Flower, Watson asks Does Permutation Exist, ChefWatson uses Social Network
June Lunchtime 2016
Collisions, One more weird game
India