February Challenge 2018
Chef And The Patents, Akanksha and End of Semester, Car-pal Tunnel, Permutation and Palindrome, Chef And His Characters
March Challenge 2018 DIV 2
Minions and Voting, Chef and Glove, Mix the Colors, A Big Sale, Chef and Easy Problem
March Cook-off 2018 Division 2
Chef Goes to the Cinema, Chef Judges a Competition
May Challenge 2018 Division 2
Mighty Friend, Minimum Deletions, Xor Again, Dibs on Fibs
June Challenge 2018 Division 2
Naive Chef, Binary Shuffle, Vision, Sheokand and String
July Challenge 2018 Division 2
Reach Equilibrium, No Minimum No Maximum, Magic Set, Strike or Spare, No Strings Attached
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Magician versus Chef, Bad Shuffle, Table Game, Chef and Adventures, War of XORs
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
India