September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures, Bad Shuffle
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests, Chef and Happiness
January Challenge 2019 Division 2
Distinct Pairs, Fancy Quotes, Chef and Modulo Game, Lucky Number Game
February Challenge 2019 Division 2
Guess It Right, Deputy Chef, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Manhattan Rectangle
August Lunchtime 2019 Division 2
Eidi Gift, Destroy Cells, Chef and Trip
October Challenge 2019 Division 1
Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Array Modification, (Challenge) Maximizing LIS
India