February Challenge 2017
Chef and His Apartment Dues
September Challenge 2017
Chef and Pick Digit, Little Chef and Sums, Minimum Good Permutation
November Challenge 2017
Chef Hates Palindromes, 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 Counting Test, Chef and Employment Test, Chef and Weird Queries
August Lunchtime 2017
Mathison and the Dynamo shuffle, Mathison and pangrams
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid, Mix Mix Game
December Lunchtime 2018 Division 2
Print Pattern, Choosing from Buckets, Age Calculator
October Long 2022 Division 2 (Unrated)
Binary Substituition, Single Operation Part 1, Single Operation Part 2
India