September Challenge 2018 Division 2
War of XORs, Magician versus Chef, Bad Shuffle, Chef and Adventures, Table Game
December Challenge 2018 Division 1
Max and Electrical Panel, Directing Edges, Chef and Interactive XOR
November Challenge 2018 Division 1
Chef and Happiness, Magician versus Chef 2, Good Median, Appy Loves One, Chef and Ridges
October Challenge 2018 Division 2
Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard, Chef and Serves, Byte to Bit, Chef and Circles
September Lunchtime 2018 Division 2
Chef Restaurant , Judging Delay, Opposite Cites
December Lunchtime 2018 Division 1
Choosing from Buckets, Age Calculator
January Challenge 2019 Division 1
Yet Another Problem About Sequences, Different Neighbours, Partition the Graph, Distinct Pairs, A Pizza Slice
February Challenge 2019 Division 1
Art of Balance, Chef and Secret Ingredients, Guess It Right, Manhattan Rectangle
March Challenge 2019 Division 1
Cheating on Queue, Yet Again a Subarray Problem
April Challenge 2019 Division 1
Offer for Chef, Kira Loves Palindromes, Mininum XOR over Tree, Playing with Numbers, Subtree Removal
May Challenge 2019 Division 1
Ada Rooks 2, Where to Build the Roads
September Mega Cook-Off 2019 Division 1
Angry Grandfather, Fitness Exercises
India