July Challenge 2017
Pishty and tree, Chef and Sign Sequences, IPC Trainers, Whats in the Name, Calculator
July Lunchtime 2017
Find the Maximum Value, Good Pairs, Travel to all Points, Divide the Set
May Lunchtime 2019 Division 1 (Unrated)
Abdullah and Toll Discounts, Reverse Maximisation, Grid Tour
June Challenge 2019 Division 1
Lent Money, Count Arrays, Chef and Ingredients, Chef and His Dish, Intersecting Paths, Sum and GCD
June Cook-Off 2019 Division 1
Drink Slush, Nice Subsets, Zawad and Index Sum, Ants and Anteaters
July Cook-Off 2019 Division 1
Birthday Gift Again, War in Treeland Again, Minimum and Maximum, Expected Product
September Lunchtime 2019 Division 1
Find the Sum, Treeversion, Ice Cream Queue, All Substrings
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Chefina and Prefix Suffix Sums, English
March Cook-Off 2020 Division 1
Mysterious Sequence, A Tree to Remember, Maximize Letter Beauty, Random Chocolates, Escape the Tree
Egypt