October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
November Challenge 2014
Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome
December Challenge 2014
Alok-nath and His Sanskars, XOR with Subset, Chef and Apple Trees
October Lunchtime 2014
Tanu and Head-bob, Physics Class
January Challenge 2015
Chef and Stones, Sereja and Votes, Gcd Queries
February Challenge 2015
Chef and Equality, Let us play with rank list, Chef and Chain, Chef and Strange Formula
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
May Challenge 2015
Set Difference , Special Economic Zone, Chef and Cake, Chef and new recipe, Chef and Prime Divisors, Devu and binary String
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Gravity Guy, Cooking Machine
France