May Challenge 2016
Forest Gathering, Chef and Balls, Laddu, Chef and Big Soccer
June Challenge 2016
Chef And The Hiring Event, Chef and Rectangle Array, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Chef and cities, Devu and an Array
July Challenge 2016
Andrash and Stipendium, Chefland and Electricity
June Lunchtime 2016
One more weird game, Collisions
February Challenge 2017
Interval Game, Chef and his Best Friend, Chef and His Apartment Dues
April Challenge 2017
Chef and Digits, Bear and Random Grid, Chef and Divisor Tree, Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
May Challenge 2017
Chef and his daily routine, Gotham PD
August Long Challenge 2017
Chef and Rainbow Array, Chef And Fibonacci Array, Chef and Mover, Hill Jumping, Walks on the binary tree, Palindromic Game, Greedy Candidates, Strings and Graphs
June Challenge 2019 Division 2
Chef and Ingredients, Sum and GCD, Intersecting Paths, Chef and His Dish, Guddu on a Date, Lent Money, Chef and Proxy, Road Signs
August Challenge 2019 Division 1
Guddu and his Mother, Dilemma, Maximize an Expression
January Challenge 2021 Division 2
Chef and Ants, Guess the Tiling, Expected Number of SCCs, Blackjack, Watching CPL, Fair Elections, And-Or Game
Vietnam