April Challenge 2015
Broken Telephone, Chef and Interview, Chef and Piano Scales
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
May Challenge 2016
Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu
June Challenge 2016
Devu and an Array, Chef and Coins Game, Chef And Binary Operation, Chef And The Hiring Event
July Challenge 2016
Andrash and Stipendium, Chefland and Electricity
September Challenge 2016
Chef and digits of a number, Faded Palindromes
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
November Challenge 2016
Chef and squares, Task for Alexey
June Lunchtime 2016
One more weird game, Collisions
January Challenge 2017
Capital Movement, Cats and Dogs, Reservior, Tourists in Mancunia
February Challenge 2017
Chef and His Apartment Dues
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
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets
October Challenge 2017
Chef and a great voluntary Program, Max Mex, A Balanced Contest
Switzerland