December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Difficult Contests, Chef and Happiness, Chef and Ridges
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
January Challenge 2019 Division 2
Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
February Challenge 2019 Division 2
Chef and Secret Ingredients, Deputy Chef, Appy and Contest
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
April Cook-Off 2019 Division 2
Pied Piper vs Hooli, Making a Meal, Chef Learning Hungarian Algorithm
June Challenge 2019 Division 2
Chef and Proxy, Guddu on a Date, Sum and GCD, Road Signs
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples, Zombie and the Caves
December Challenge 2019 Division 2
Addition, That Is My Score!, Easy Subsequence Selection, Binary XOR, Plus Multiply
March Cook-Off 2020 Division 2
Mysterious Sequence, Find Your Gift, Box of Chocolates
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food, Under the Tunnels
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian, Doof fires Brackets
Bangladesh