February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings
July Challenge 2017
Whats in the Name, Chef and Sign Sequences
October Challenge 2017
Max Mex, Counter Test For CHEFSUM, A Balanced Contest
November Cook-Off 2017
Online Chess, Random Pair
January Challenge 2018
String Merging, Partition the numbers, Rectangle, K-Concatenation, (Challenge) Chef and Palindromes, Maximum Score
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
March Challenge 2018 DIV 1
A Big Sale, Chef and Glove
September Mega Cook-Off 2018 Division 1
OneTwo, Make a Permutation
May Challenge 2018 Division 2
Xor Again, Dibs on Fibs, Fake Binary Search, Minimum Deletions, Mighty Friend
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
Quick Code (Rated for Division 2)
Immortal Frieza, Majin Vegeta, Dr Geros lab
April Challenge 2020 Division 1
Sell All the Cars, COVID Pandemic and Long Queue
India