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, The Spelling Problem
January Lunchtime 2015
Piece of cake, Just multiply
February Challenge 2015
Chef and Strange Formula, Chef and Equality
April Challenge 2015
Chef and Piano Scales, Broken Telephone, Chef and Interview
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum
October Cook-Off 2015
Word Stem, Almost Sorted Permutation
July Lunchtime 2015
Greedy puppy, Puppy and game
India