February Challenge 2017
Chef and His Apartment Dues
April Challenge 2017
Dish Of Life, Bear and Row 01, Similar Dishes
May Challenge 2017
Chef and his daily routine, Courses in an university
June Challenge 2017
A Good Set, Xenny and Coin Rankings
August Long Challenge 2017
Chef and Rainbow Array, Greedy Candidates, Palindromic Game, Chef and Mover
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Chef and a great voluntary Program, A Balanced Contest, Counter Test For CHEFSUM, Max Mex
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
September Lunchtime 2017
Chef and Cook-Off Contests
October Lunchtime 2017
Buggy Calculator, Maximum Number
April Challenge 2018 Division 1
Chef and Array (Challenge), Highway Crossing, Count Good Prefixes
India