May Challenge 2017
Chef and Sub Array , Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences
June Challenge 2017
Xenny and Coin Rankings, Pairwise union of sets, Triplets, Chef and the Feast, A Good Set
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates
October Challenge 2017
A Balanced Contest, Counter Test For CHEFSUM, Chef and a great voluntary Program, Max Mex
August Cook-Off 2017
Real obtuse, From heaven to earth
October Cook-Off 2017
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries
December Cook-Off 2017
Football Match, Beautiful Array
Alkhwarizm 2017 (Rated)
Logan and his XOR debacle
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
February Cook-Off 2018
Chef and Cook-Off, Chef and Tuples, Chef and Line
March Cook-off 2018 Division 1
Chef Goes to the Cinema, Chef Restores a Matrix
India