November Challenge 2014
Distinct Characters Subsequence, Chef and Segment Game
January Challenge 2015
Chef and Stones, Sereja and Votes, One Dimensional Kingdoms
February Challenge 2015
Chef and Chain, Let us play with rank list, Chef and Equality
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Chef and Interview, Chef and Piano Scales, Broken Telephone
August Challenge 2015
Gravity Guy, Cooking Machine
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
November Challenge 2015
Eugene and function, Chef and cakes
May Challenge 2016
Chef and Balls, Forest Gathering, Laddu
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
September Challenge 2016
Chef and Friends, Chef and calculation, Faded Palindromes, Chef and digits of a number
February Lunchtime 2016
Chef and Socks, Chef and Tic-Tac-Toe
August Lunchtime 2016
Studying Alphabet, Lock-Free Stack
India