September Challenge 2017
Minimum Good Permutation, Chef and Pick Digit, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
August Cook-Off 2017
Real obtuse, From heaven to earth
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
January Challenge 2018
Maximum Score, Rectangle, K-Concatenation
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Broken Clock, Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
March Challenge 2018 DIV 2
Minion Chef and Bananas, Minions and Voting, Mix the Colors, A Big Sale, Chef and Easy Problem, Chef and Glove
March Cook-off 2018 Division 1
Chef Goes to the Cinema, Chef Restores a Matrix
June Cook-Off 2018 Division 2
Archi and Comparsion, Good Permutations
June Lunchtime 2018 Division 2
Summary Power, Counting Pretty Numbers
Quick Code (Rated for Division 2)
Immortal Frieza, Majin Vegeta, Dr Geros lab
January Challenge 2019 Division 1
Yet Another Problem About Sequences, A Pizza Slice, Distinct Pairs, Different Neighbours
February Challenge 2019 Division 1
Chef and Secret Ingredients, Appy and Contest, Art of Balance
September Lunchtime 2019 Division 2
Chef Feeds Cats, Chef and Football Match
October Lunchtime 2019 Division 2
Khaled in HIT, Box Game, Counting Inversions Revisited
India