December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests
February Challenge 2019 Division 2
Deputy Chef, Appy and Contest, Chef and Magical Jars, Chef and Secret Ingredients
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Fencing, Maximum Remaining
August Challenge 2019 Division 2
Football, Distribute Apples
India