March Challenge 2014
Binary Tournament, Team Split, Mike and Stamps, Little Chef and Numbers, Walk, Maximum number, GCD condition
July Challenge 2014
Garden Game, Chef and Frogs, Count Substrings
August Challenge 2014
Chef and Gift, Cleaning Tables, The Leaking Robot, Chef and Reversing
October Challenge 2016
Sereja and Stones, Chef and Keyboard, Big Queries, Fenwick Iterations, Chef and Three Dogs, Chef and Two String
September Cook-Off 2016
Find The Point, The Lost Arithmetic Sequences, Lazy Jem, Counting Strings
October Cook-Off 2016
Watson asks Does Permutation Exist, ChefWatson uses Social Network
August Cook-Off 2017
Matrix and Chef, Real obtuse, From heaven to earth
September Cook-Off 2017
Subsequence Equality, Statistics Construction, Infinite OR Game
October Cook-Off 2017
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries, Chef and Dancing Steps
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests
March Cook-off 2018 Division 1
Chef Goes to the Cinema, Chef Restores an Array, Chef Restores a Matrix
Singapore