March Challenge 2017
(CH) Bear and Sorted Rows, Xenny and Alternating Tasks
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
A Balanced Contest, Max Mex
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
September Cook-Off 2017
Statistics Construction, Subsequence Equality
February Challenge 2018
Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
December Challenge 2018 Division 2
Chef and Interactive Contests
October Challenge 2018 Division 2
Byte to Bit, Chef and Serves
ProCon 2018 (Rated for all)
The Great Run, Kill them with your success
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining
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