September Challenge 2016
Chef and Friends, Chef and calculation, Faded Palindromes, Chef and digits of a number
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
November Challenge 2016
Count Permutations, Chef and squares, Task for Alexey
October Cook-Off 2016
Watson asks Does Permutation Exist, ChefWatson uses Social Network
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
June Challenge 2017
A Good Set, Xenny and Coin Rankings
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries, Chef and Counting Test
March Lunchtime 2017
Bear and Ladder, Bear and Species
December Lunchtime 2017
Days in Month, Strange Function
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