October Challenge 2019 Division 2
Missing Number, Chef and Maximum Star Value, Fun with Lists, Array Modification, Operations on a Matrix, Phone Prices, Even Edges
October Mega Cook-Off 2019 Division 2
Cakewalk, Medel, Hidden Sequence, D-Or
November Challenge 2019 Division 1
A Simple Game, Single Point of Failure, From Zero to Infinity, Smallest Beautiful Number, Physical Exercise
November Lunchtime 2019 Division 1
Planting Trees, Washing Windows, Perfection
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, English
April Challenge 2020 Division 1
Perfect Power Divisors, Leaked Answers (Challenge), Line Line Line Graph, Factor Tree, Squared Subsequences, Strange Number, Ready Bitwise
May Challenge 2020 Division 1
Buying a New String, Triple Sort, Sorting Vases, Chef and Bitwise Product
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty, Random Chocolates
July Challenge 2020 Division 1
Chef and Dragon Dens, Weird Product, Doctor Chef, Missing a Point, Chefina and Swaps, LCM Constraints
July Cook-Off 2020 Division 1
What Is This, a Crossover Episode, MEX-ception, Even-tual Reduction, OR-thodox Distinction, Path-etic Products
June Lunchtime 2020 Division 1
Maximum AND, Gold Mining, Square Submatrices
India