December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2019 Division 2
Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice
February Challenge 2019 Division 2
Appy and Contest, Deputy Chef, Chef and Secret Ingredients, Chef and Magical Jars
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients, Sum and GCD
July Challenge 2020 Division 2
Ada King, Chefina and Swaps, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings
July Cook-Off 2020 Division 2
Even-tual Reduction, OR-thodox Distinction
India