July Challenge 2016
Chefland and Electricity, Andrash and Stipendium
May Challenge 2017
Median of adjacent maximum numbers
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
September Challenge 2017
Chef and Pick Digit, Little Chef and Sums, Fill The Matrix, Weasel does Xor on Tree, Sum of Cubes, Minimum Good Permutation, Sereja and Commands
October Challenge 2017
A Balanced Contest, Counter Test For CHEFSUM, Shooting on the array, Chef and a great voluntary Program, Chef and Magic Arrays, Max Mex
August Cook-Off 2017
Game on Stick, Real obtuse, From heaven to earth
October Cook-Off 2017
Chef and Weird Queries, Chef and Employment Test, Chef and Counting Test
December Cook-Off 2017
Beautiful Array, Football Match
June Lunchtime 2017
Maximum Unique Segment, Two Numbers
August Lunchtime 2017
Mathison and the Dynamo shuffle, Mathison and pangrams
October Lunchtime 2017
Buggy Calculator, Maximum Number
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