July Cook-Off 2018 Division 2
Encoding Message, OR Matrix
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
October Mega Cook-Off 2018 Division 2
Binary Nim 2, Ada and the Staircase
May Challenge 2018 Division 2
Minimum Deletions, Xor Again
July Challenge 2018 Division 2
Magic Set, Strike or Spare
August Challenge 2018 Division 2
Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
December Challenge 2018 Division 1
Chef and Interactive XOR, Max and Electrical Panel
October Challenge 2018 Division 2
Minimize Digitsum, Chef and Serves, Byte to Bit
June Lunchtime 2018 Division 2
Summary Power, Counting Pretty Numbers
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
January Challenge 2019 Division 2
Lucky Number Game, A Pizza Slice, Fancy Quotes, Chef and Modulo Game, Distinct Pairs, Different Neighbours
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit
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