September Challenge 2017
Minimum Good Permutation, Little Chef and Sums, Chef and Pick Digit
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
February Challenge 2018
Chef And The Patents, Permutation and Palindrome, Car-pal Tunnel, Chef And His Characters
March Challenge 2018 DIV 2
Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas
August Cook-Off 2018 Division 2
GukiZ and Candies, Balsa For The Three, Mixi Game
March Lunchtime 2018 Division 2 (Unrated)
Partitions, Chef and Friends, Three Integers, Magic Elements
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Condition Zero (Challenge), Chef and Adventures, Table Game, Bad Shuffle
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
September Lunchtime 2018 Division 2
Judging Delay, Opposite Cites, Chef Restaurant
Code Melange (Rated)
The Deadly Sin, Candy Love
February Cook-Off 2019 Division 1
Max Range Queries, Chef and Secret Password, Chef and Party
India