September Challenge 2015
Count Steps in Matrix, Chain of Doughnuts
March Challenge 2016
Palindromic substrings, maximize the sum
April Challenge 2016
Chef And Magical Path, Chef And Coloring
June Challenge 2016
Chef and Coins Game, Devu and an Array, Chef And Binary Operation, Chef And The Hiring Event
August Challenge 2016
Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
India