December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive XOR, Chef and Meatballs, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Good Median, Magician versus Chef 2, Chef and Difficult Contests, Chef and Happiness
February Challenge 2019 Division 2
Manhattan Rectangle, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit
May Cook-Off 2019 Division 1
Misha and Nice Sets, Expected Xor
Alkhwarizm (Rated for all)
Weirwood Trees, Danny Wants To Know
India