October Challenge 2017
A Balanced Contest, Max Mex
November Challenge 2017
Periodic Palindrome Construction, Villages and Tribes
February Challenge 2018
Chef And His Characters, Chef And The Patents, Car-pal Tunnel
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove
August Cook-Off 2018 Division 2
Balsa For The Three, Mixi Game
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
April Challenge 2018 Division 2
Chef and Array (Challenge), Weight of Numbers, Workers
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Bad Shuffle, Chef and Adventures, War of XORs, Magician versus Chef, Chef and Condition Zero (Challenge)
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef, Primes and Trees (Challenge), Magician versus Chef 2, Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Minimize Digitsum, Chef and Serves, Byte to Bit
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
January Challenge 2019 Division 1
Different Neighbours, Distinct Pairs
February Challenge 2019 Division 2
Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
India