September Challenge 2017
Minimum Good Permutation, Little Chef and Sums, Chef and Pick Digit
October Challenge 2017
Max Mex, Counter Test For CHEFSUM, A Balanced Contest
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting
April Challenge 2018 Division 2
Workers, Average of Pairs, Count Good Prefixes, Weight of Numbers, Chef and Array (Challenge), Highway Crossing
June Challenge 2018 Division 2
Vision, Sheokand and String, Binary Shuffle, Naive Chef
July Challenge 2018 Division 2
Reach Equilibrium, No Minimum No Maximum, Magic Set, Strike or Spare
August Challenge 2018 Division 2
Modular GCD, Spell Bob, Sheokand and Number, Problem Sort
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Condition Zero (Challenge), Chef and Adventures, Table Game, Bad Shuffle
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