November Challenge 2017
Villages and Tribes, Chef Hates Palindromes
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests
December Cook-Off 2018 Division 2
Camp Or Not, Yalalovichik Numbers, Yalalovichik Strings
June Lunchtime 2018 Division 2
Sort the Leaves, Permutation Composition Queries, Summary Power, Counting Pretty Numbers
March Lunchtime 2019 Division 1
Corrupted Seven-Segment Display, Travelling Saleschef
April Cook-Off 2019 Division 1
Doubly Increasing Path, Random Game, Pied Piper vs Hooli, Making a Meal, Mystery Tree
June Cook-Off 2019 Division 1
Nice Subsets, Ants and Anteaters, Drink Slush
Ukraine