September Mega Cook-Off 2018 Division 2
Make a Permutation, ATM Machine
September Challenge 2018 Division 2
War of XORs, Chef and Adventures, Bad Shuffle, Magician versus Chef
December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Byte to Bit, Chef and Serves
January Challenge 2019 Division 2
Yet Another Problem About Sequences, Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice
January Lunchtime 2019 Division 2
The Nights Watch, Rooks, Distances
February Challenge 2019 Division 1
Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Appy and Contest, Art of Balance
July Challenge 2019 Division 1
Guess the Prime!, Parity Again, Circular Merging
February Lunchtime 2021 Division 2
Palpal Strings, Coprime Range
April Lunchtime 2021 Division 2
A Special Tree, Array Rotation, Bench Press, Chef in Heaven
May Challenge 2021 Division 2 (Rated)
Valid Paths, Tree House, An Interesting Sequence, King Killing, Xor Equality, Tic Tac Toe, Modular Equation, Solubility
India