November Challenge 2017
Chef goes Left Right Left, Chef Hates Palindromes, Villages and Tribes, Periodic Palindrome Construction
February Cook-Off 2018
Chef and Cook-Off, Chef and Tuples
April Challenge 2018 Division 2
Weight of Numbers, Count Good Prefixes, Average of Pairs, Workers
February Cook-Off 2019 Division 2
Buying New Tablet, Chef and Party
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
March Challenge 2019 Division 2
Chef and a Beautiful Digit, Chef and Number Game, Chef got Recipes
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
August Challenge 2019 Division 2
Zombie and the Caves, Distribute Apples, Football, Dilemma, Guddu and his Mother
September Lunchtime 2019 Division 2
Chef Feeds Cats, Chef and Football Match, All Substrings, Find the Sum
Biteration #2 (Rated for Division 2)
A - Books, C - Chef and Maths
India