February Challenge 2016
Chef and Strange Operations, Rectangles of Love, Chef-Detective
March Challenge 2016
Palindromic substrings, Chef and Number Guessing, maximize the sum, Chef And Special Dishes
April Challenge 2016
Help Watson Escape, Chef And Coloring, Chef And Magical Path, Chef and Ballons
May Challenge 2016
Chef and Balls, Forest Gathering, Laddu
September Challenge 2016
Chef and Friends, Chef and calculation, JosephLand, Faded Palindromes, Chef and digits of a number, Dividing Machine
October Challenge 2016
Sereja and Progressions, Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
November Challenge 2016
Count Permutations, Friends Meeting, Chef and squares, Task for Alexey
December Challenge 2016
Our Base is Under Attack, Kth Max Subarray, Edit Distance Revisited, Train Partner, Kirito in labyrinth
April Cook-Off 2016
Movie Weekend, Odd Divisors
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
October Cook-Off 2016
Watson asks Does Permutation Exist, ChefWatson uses Social Network
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
January Challenge 2017
Capital Movement, Cats and Dogs, Chef and Circle, Fantastic Four, Reservior, Tourists in Mancunia
June Challenge 2017
Chef and Prime Queries, Saboteur (Challenge), A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
India