April Challenge 2019 Division 2
Maximum Remaining, Friend or Girlfriend
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients, Sum and GCD
June Cook-Off 2019 Division 2
Multiple Choice Exam, Eat Twice
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
September Mega Cook-Off 2019 Division 2
Playing with Matches, Two Groups
September Lunchtime 2019 Division 2
Chef Feeds Cats, Chef and Football Match, All Substrings, Find the Sum
October Challenge 2019 Division 1
Even Edges, Missing Number, Chef and Maximum Star Value, Array Modification, (Challenge) Maximizing LIS
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, (Challenge) Building Anthills
India