December Challenge 2017
Chef And his Cake, Penalty Shoot-out, Total Diamonds
February Challenge 2018
Chef And His Characters, Chef And The Patents, Permutation and Palindrome
March Challenge 2018 DIV 2
Minions and Voting, Minion Chef and Bananas, Chef and Glove, Mix the Colors, A Big Sale, Chef and Easy Problem
December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive XOR, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Appy Loves One, Chef and Happiness, Chef and Difficult Contests, Good Median, Chef and Ridges
January Challenge 2019 Division 2
Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
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
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
March Challenge 2019 Division 1
Yet Again a Subarray Problem
Egypt