April Challenge 2015
Broken Telephone, Chef and Interview
June Challenge 2016
Chef And The Hiring Event, Chef And Binary Operation, Chef and Coins Game
August Challenge 2016
Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and Friends, Chef and calculation, Faded Palindromes, Chef and digits of a number, Dividing Machine
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
November Challenge 2016
Task for Alexey, Chef and squares, Count Permutations, Gift and Chef
December Challenge 2016
Train Partner, Kirito in labyrinth, Our Base is Under Attack
October Cook-Off 2016
Watson asks Does Permutation Exist
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix
April Challenge 2017
Bear and Row 01, Similar Dishes, Bear and Clique Distances, Dish Of Life
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator
India