May Challenge 2018 Division 2
Minimum Deletions, Xor Again, Dibs on Fibs, Mighty Friend
June Challenge 2018 Division 2
Binary Shuffle, Naive Chef
July Challenge 2018 Division 2
Reach Equilibrium, No Minimum No Maximum, Magic Set, Strike or Spare
August Challenge 2018 Division 2
Problem Sort, Spell Bob, Sheokand and Number
December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive XOR, Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2019 Division 2
Different Neighbours, A Pizza Slice, Fancy Quotes, Chef and Modulo Game, Distinct Pairs, Lucky Number Game
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
May Cook-Off 2019 Division 2
Chain Reaction, Misha and Nice Sets, Recover the Sequence
June Challenge 2019 Division 1
Chef and Proxy, Lent Money, Chef and Ingredients, Chef and His Dish, Sum and GCD
India