November Challenge 2017
Chef goes Left Right Left, Chef Hates Palindromes, Villages and Tribes, Periodic Palindrome Construction
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
July Challenge 2018 Division 2
Strike or Spare, Magic Set
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
July Challenge 2019 Division 2
Guess the Prime!, Parity Again, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
April Challenge 2020 Division 2
Sell All the Cars, COVID Pandemic and Long Queue, Unit GCD, Strange Number
March Challenge 2021 Division 3
Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait
May Challenge 2021 Division 3 (Rated)
Xor Equality, Tic Tac Toe, Golf, Solubility
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