August Cook-Off 2020 Division 2
Chef and Work, Polygon Relationship
October Challenge 2020 Division 2
Positive AND, Replace for X, D-Dimensional MST, Adding Squares, Covid Run, Chef and Easy Queries
February Challenge 2021 Division 3
Chef and Meetings, Highest Divisor, Maximise Function, Multiple Games, Prime Game, Another Tree with Number Theory, Team Name, Frog Sort
Starters 141 Division 4 (Rated)
Redundant Array, Nearly Equal, Lucky Clover
Starters 142 Division 3 (Rated)
Array Removal, Chef loves Pizza Chef loves halfs, Penalty Shoot-out
Starters 146 Division 3 (Rated till 5 stars)
Permutation Construction, Knockout tournament, No Winner
Starters 147 Division 3 (Rated till 5 stars)
Truth Teller And Liars 101, Independence Day 101, Gold Coins 101
Starters 149 (Rated)
Magical World, Maximise Sum, Chef Loves Beautiful Strings (Easy Version)
Starters 161 (Rated)
Selling Donuts, Two Cards
Starters 163 (Rated)
Binary Sum, Minimum Types
Starters 164 (Rated)
Itz Simple, Swap and Flip
Starters 165 (Rated)
Poster Perimeter, Stable Array, Bulk Discount
Starters 166 (Rated)
Chefland Library, Christmas Gifts
Starters 170 (Rated)
Monster Monster, Minimum Bottles
India