September Challenge 2016
Chef and digits of a number, Faded Palindromes
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets
July Challenge 2017
Chef and Sign Sequences, IPC Trainers, Calculator , Whats in the Name
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
India