February Challenge 2017
Chef and His Apartment Dues
June Challenge 2017
A Good Set, Xenny and Coin Rankings
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Chef and Circles, Byte to Bit, Minimize Digitsum, Appy and Balloons , Chef and Serves
January Challenge 2019 Division 2
Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
February Challenge 2019 Division 2
Art of Balance, Deputy Chef, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Manhattan Rectangle
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
India