June Challenge 2018 Division 2
Naive Chef, Binary Shuffle
July Challenge 2018 Division 2
Magic Set, Strike or Spare
August Challenge 2018 Division 2
Problem Sort, Sheokand and Number, Spell Bob
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
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
January Challenge 2019 Division 2
Fancy Quotes, Lucky Number Game, Distinct Pairs
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
February Cook-Off 2019 Division 2
Buying New Tablet, Chef and Party
March Challenge 2019 Division 2
Chef and a Beautiful Digit, Chef and Number Game
August Challenge 2019 Division 2
Guddu and his Mother, Dilemma, Zombie and the Caves
October Challenge 2019 Division 2
Array Modification, Operations on a Matrix
India