August Challenge 2019 Division 2
Football, Distribute Apples, Dilemma
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
February Challenge 2020 Division 2
The Theatre Problem, School of Geometry, Hard Cash
March Challenge 2020 Division 2
Pintu and Fruits, Ada Bishop 2, XOR Engine
April Challenge 2020 Division 2
Sell All the Cars, COVID Pandemic and Long Queue
June Challenge 2020 Division 2
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
Chef Wars - Return of the Jedi, Smallest KMP, Another Card Game Problem, Chef and Linear Chess
September Challenge 2020 Division 2
A Problem on Sticks, Ada Matrix
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes
December Challenge 2020 Division 2
Vaccine Distribution, Vaccine Production, Even Pair Sum, Positive Prefixes
April Challenge 2021 Division 3
Chef and Dice, Valid Pair, World Record, Strong Language
September Long 2022 Division 3 (Rated)
Speed Limit Test, Bob at the Bank, Interesting Subarray, Good Pairs
Costa Rica