September Challenge 2017
Chef and Pick Digit, Little Chef and Sums, Minimum Good Permutation
October Challenge 2017
Max Mex, A Balanced Contest
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
September Cook-Off 2017
Statistics Construction, Subsequence Equality
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
September Lunchtime 2017
Chef and Cook-Off Contests
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
October Mega Cook-Off 2018 Division 2
Binary Nim 2, Ada and the Staircase
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
October Challenge 2018 Division 2
Minimize Digitsum, Chef and Serves, Byte to Bit, Chef and Circles
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
September Lunchtime 2018 Division 2
Judging Delay, Chef Restaurant
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit
April Cook-Off 2019 Division 2
Chef Learning Hungarian Algorithm, Pied Piper vs Hooli, Making a Meal
August Challenge 2019 Division 2
Guddu and his Mother, Zombie and the Caves, Distribute Apples, Football, Dilemma
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
India