September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures, War of XORs
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
October Challenge 2018 Division 2
Appy and Balloons , Chef and Serves, Byte to Bit
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
ProCon Junior (Rated for Division 2)
Chef and Secret Ingredient
January Challenge 2019 Division 2
Distinct Pairs, Fancy Quotes, Chef and Modulo Game, Lucky Number Game
February Challenge 2019 Division 2
Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
March Challenge 2019 Division 2
Chef and a Beautiful Digit, Chef and Number Game, Chef got Recipes, Yet Again a Subarray Problem
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Subtree Removal, Fencing
October Challenge 2019 Division 1
(Challenge) Maximizing LIS, Phone Prices, Operations on a Matrix, Array Modification, Chef and Maximum Star Value, Missing Number, Even Edges
November Lunchtime 2019 Division 1
Planting Trees, Washing Windows
February Challenge 2020 Division 1
Chef and Railway Stations, Expected Change, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
India