November Challenge 2014
Distinct Characters Subsequence, Chef and Red Black Tree
April Challenge 2015
Broken Telephone, Chef and Piano Scales
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows
April Challenge 2017
Dish Of Life, Similar Dishes
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Pairwise union of sets
July Challenge 2017
Whats in the Name, IPC Trainers
August Long Challenge 2017
Chef and Rainbow Array, Greedy Candidates, Palindromic Game
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
August Cook-Off 2017
Real obtuse, From heaven to earth
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle
March Challenge 2018 DIV 2
A Big Sale, Chef and Glove
Starters 135 Division 3 (Rated)
Invert And Equalize, Football Ties
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