March Challenge 2018 DIV 2
A Big Sale, Chef and Glove, Mix the Colors
March Cook-off 2018 Division 2
Chef Goes to the Cinema, Chef Judges a Competition
May Challenge 2018 Division 2
Mighty Friend, Minimum Deletions, Xor Again
July Challenge 2018 Division 2
Magic Set, Strike or Spare
August Challenge 2018 Division 2
Sheokand and Number, Spell Bob
December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Difficult Contests
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
April Challenge 2020 Division 2
COVID Pandemic and Long Queue, Sell All the Cars, Strange Number
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Smallest KMP, Chef and Linear Chess, Chef Wars - Return of the Jedi, Another Card Game Problem
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Point Of Impact, Encoded String
May Long One 2022 Division 3 (Rated)
Pushpa , Sugarcane Juice Business, The Attack of Queen
May Long Two 2022 Division 3 (Rated)
Xor Palindrome, Score High, Make them Zero, Degree of Polynomial
India