November Challenge 2017
Chef goes Left Right Left, Chef Hates Palindromes, Villages and Tribes, Periodic Palindrome Construction
December Cook-Off 2017
Beautiful Array, Football Match
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging
February Challenge 2018
Chef And His Characters, Permutation and Palindrome, Car-pal Tunnel, Chef And The Patents
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
July Challenge 2018 Division 2
Magic Set, Strike or Spare
October Challenge 2018 Division 2
Minimize Digitsum, Chef and Serves, Byte to Bit
July Lunchtime 2018 Division 2
Split Stones, Forced Particles
January Challenge 2019 Division 2
Chef and Modulo Game, Fancy Quotes, Distinct Pairs, Lucky Number Game, Different Neighbours
February Challenge 2019 Division 2
Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
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