December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2019 Division 2
Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
February Challenge 2019 Division 2
Deputy Chef, Art of Balance, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Manhattan Rectangle
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit
May Cook-Off 2019 Division 2
Chain Reaction, Recover the Sequence
May Lunchtime 2019 Division 2 (Unrated)
Dummy Palindromic Strings, CV
India