December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
January Challenge 2019 Division 2
Distinct Pairs, Fancy Quotes, Lucky Number Game
November Lunchtime 2019 Division 2
Planting Trees, Pizza or Broccoli , Compress the List, Perfection
February Cook-Off 2020 Division 1
Maximum Subsequence Sum, XOR Game, Chef and Pepperoni Pizza Again
March Cook-Off 2020 Division 1
Mysterious Sequence, Escape the Tree , Maximize Letter Beauty
May Cook-Off 2020 Division 1
Chef, Chefina and Their Friendship, Chefina on a Trip, Roads in Chefland
January Lunchtime 2021 Division 1 (Unrated)
Dreams of Divisibility, Even Sum
April Cook-Off 2021 Division 1
Tree Distances, OR of ANDs, Deletion Sort
March Lunchtime 2022 Division 1
Mathology, Winter, Adjacency Love, Separate Them All
Starters 134 Division 1 (Rated till 6-Stars)
Origin, 3out1in, Prison Escape
Starters 136 Division 1 ( Rated till 6-Stars )
Game On Rectangle, Sum of Modes
Starters 138 Division 1 (Rated till 6-Stars)
A power B mod C , Distinct Substring, Breezy Mode Problem, Prefix Suffix Inequality, TRIPLE PRIMES
Starters 140 Division 2 (Rated)
Make Permutation, Split Permutation, Trick Or Treat, Break The String, Tree Removal
Starters 142 Division 1 (Rated till 5-Stars)
Array Removal, Number Hunt
