May Challenge 2018 Division 2
Minimum Deletions, Xor Again, Dibs on Fibs, Mighty Friend
July Challenge 2018 Division 2
Magic Set, Strike or Spare, No Strings Attached
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
November Challenge 2018 Division 1
Chef and Ridges, Chef and Happiness, Chef and Difficult Contests, Magician versus Chef 2, Good Median, Appy Loves One
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Unit GCD, Leaked Answers (Challenge)
Code Ensemble (Rated for Division 2)
Priya and AND, Help Martha
Russia