September Challenge 2016
Faded Palindromes, Chef and calculation, Chef and digits of a number
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
November Challenge 2016
Chef and squares, Task for Alexey
February Challenge 2017
Chef and Triangles, Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix
April Challenge 2017
Similar Dishes, Bear and Row 01, Dish Of Life
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings
July Challenge 2017
Chef and Sign Sequences, Tree Expectancy, Whats in the Name, Calculator , IPC Trainers
August Long Challenge 2017
Palindromic Game, Greedy Candidates, Chef and Mover, Chef and Rainbow Array
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Fill The Matrix, Little Chef and Sums
April Cook-Off 2017
Bear and Candies 123, Bear and AB
India