August Challenge 2018 Division 2
Problem Sort, Sheokand and Number, Spell Bob, Modular GCD
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures, Table Game, Bad Shuffle
December Challenge 2018 Division 2
Chef and Meatballs, Chef and An Ideal Problem, Chef and Interactive Contests, Chef and Interactive XOR, Max and Electrical Panel, (Challenge) Delete DAG
January Challenge 2019 Division 1
Yet Another Problem About Sequences, Different Neighbours, Distinct Pairs, A Pizza Slice
January Cook-Off 2021 Division 2
Prime Tuples, Maximise Islands
January Lunchtime 2021 Division 2 (Unrated)
Dreams of Divisibility, Binary Subsequence, Even Differences, Even Sum
