February Challenge 2016
Chef-Detective, Chef and Strange Operations
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Chef and Three Dogs, Fenwick Iterations, Chef and Keyboard
October Cook-Off 2016
Watson asks Does Permutation Exist, ChefWatson uses Social Network
February Challenge 2017
Chef and His Apartment Dues
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
September Challenge 2017
Chef and Pick Digit, Little Chef and Sums
India