September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
September Lunchtime 2017
Chef and Cook-Off Contests
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Car-pal Tunnel, Permutation and Palindrome, Chef And The Patents, Chef And His Characters
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Point Of Impact, Encoded String
India