October Challenge 2016
Chef and Three Dogs, Chef and Keyboard
February Challenge 2017
Chef and His Apartment Dues, Gerrymander
April Challenge 2017
Dish Of Life, Bear and Row 01, Similar Dishes
May Challenge 2017
Chef and his daily routine, Chef and Subsequences, Median of adjacent maximum numbers, Courses in an university, Chef and Sub Array
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Pairwise union of sets
September Challenge 2017
Little Chef and Sums, Chef and Pick Digit, Minimum Good Permutation
October Challenge 2017
Max Mex, Counter Test For CHEFSUM, A Balanced Contest
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
April Cook-Off 2017
Bear and Candies 123, Bear and AB
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, Partition the numbers
March Challenge 2018 DIV 2
Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas
India