March Challenge 2017
Bear and Extra Number, Xenny and Alternating Tasks
May Challenge 2017
Chef and his daily routine
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator , IPC Trainers
September Challenge 2017
Minimum Good Permutation, Little Chef and Sums, Fill The Matrix, Chef and Pick Digit
October Challenge 2017
Chef and a great voluntary Program, Chef and Cycled Cycles, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
India