September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
February Challenge 2017
Eugene and big number, Chef and Triangles, Chef and His Apartment Dues, Gerrymander
March Challenge 2017
Bandwidth of a matrix, (CH) Bear and Sorted Rows, Bear and Extra Number, Xenny and Alternating Tasks
June Challenge 2017
A Good Set, Xenny and Coin Rankings
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator
July Challenge 2020 Division 2
Ada King, Chef and Card Game, Chef and Strings
