May Challenge 2018 Division 2
Xor Again, Minimum Deletions
June Challenge 2018 Division 2
Vision, Sheokand and String, Binary Shuffle, Naive Chef
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
December Challenge 2018 Division 2
Directing Edges, Chef and An Ideal Problem, Chef and Interactive Contests, Chef and Meatballs, Chef and Interactive XOR, Max and Electrical Panel, (Challenge) Delete DAG
January Challenge 2019 Division 1
Yet Another Problem About Sequences, Different Neighbours, Partition the Graph, Distinct Pairs, A Pizza Slice
May Lunchtime 2019 Division 1 (Unrated)
Grid Tour, Abdullah and Toll Discounts, Reverse Maximisation
June Challenge 2019 Division 1
Lent Money, Count Arrays, Chef and Ingredients, Intersecting Paths, Sum and GCD
December Lunchtime 2019 Division 1
The Evil Professor, Guess the number
January Cook-Off 2020 Division 1
Profitable Paths, Chefina and Sums, Range AND
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty, Random Chocolates, Escape the Tree
July Cook-Off 2020 Division 1
The In-XOR-able Task, Even-tual Reduction, OR-thodox Distinction, Path-etic Products
India