May Challenge 2017
Chef and his daily routine, Courses in an university
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator
November Challenge 2017
Villages and Tribes, Periodic Palindrome Construction, Chef goes Left Right Left, Chef Hates Palindromes
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2021 Division 3
Point Of Impact, Encoded String
