February Challenge 2017
Chef and His Apartment Dues
October Challenge 2017
Max Mex, A Balanced Contest
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
October Mega Cook-Off 2018 Division 2
Binary Nim 2, Ada and the Staircase, Pumping Water
April Challenge 2018 Division 2
Average of Pairs, Workers
June Challenge 2018 Division 2
Binary Shuffle, Naive Chef
July Challenge 2018 Division 2
Magic Set, Strike or Spare
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Chef and Adventures, War of XORs, Magician versus Chef
October Challenge 2018 Division 2
Minimize Digitsum, Chef and Serves, Byte to Bit
January Challenge 2019 Division 1
Different Neighbours, Distinct Pairs
July Challenge 2019 Division 2
Circular Merging, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Football, Zombie and the Caves, Distribute Apples, Dilemma, Guddu and his Mother
February Challenge 2020 Division 2
The Theatre Problem, School of Geometry, Hard Cash
April Challenge 2020 Division 2
Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
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