November Challenge 2017
Villages and Tribes, Periodic Palindrome Construction
December Challenge 2018 Division 2
Chef and Interactive Contests
February Cook-Off 2019 Division 2
Buying New Tablet, Chef and Party
June Cook-Off 2019 Division 2
Multiple Choice Exam, Eat Twice
August Challenge 2019 Division 2
Distribute Apples, Dilemma, Football
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Equality, Breaking Bricks
April Challenge 2020 Division 2
Unit GCD, COVID Pandemic and Long Queue, Leaked Answers (Challenge), Sell All the Cars, Squared Subsequences, Strange Number
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
