May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
August Long Challenge 2017
Chef And Fibonacci Array, Chef and Mover, Palindromic Game, Greedy Candidates
September Challenge 2017
Chef and Pick Digit, Little Chef and Sums, Fill The Matrix, Minimum Good Permutation, Sereja and Commands
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Villages and Tribes
August Cook-Off 2017
From heaven to earth, Real obtuse
September Cook-Off 2017
Infinite OR Game, Statistics Construction, Subsequence Equality
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
August Lunchtime 2017
Mathison and the Dynamo shuffle, Mathison and pangrams
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures, Table Game, Bad Shuffle
