November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes, Chef Hates Palindromes
February Challenge 2018
Chef And His Characters, Chef And The Patents, Permutation and Palindrome
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas
March Cook-off 2018 Division 2
Chef Judges a Competition
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
India