October Challenge 2015
Who dares to be a millionaire, Count Subarrays
November Challenge 2015
Eugene and function, Chef and cakes
December Challenge 2015
Chef and the stones, Oracle Devu and Longest Common Subsequence
February Challenge 2016
Chef and Strange Operations, Devu and a light discussion, Chef-Detective
March Challenge 2016
Chef And Special Dishes, maximize the sum, Palindromic substrings
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
May Challenge 2016
Chef and math, Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu
June Challenge 2016
Chef and Rectangle Array, Devu and an Array, Chef and cities, Chef and Coins Game, Chef and Array and K, Chef And The Hiring Event, Chef And Binary Operation
July Challenge 2016
Andrash and Stipendium, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity
August Challenge 2016
Chef and Chocolate, Chef and Round Run
October Challenge 2016
Fenwick Iterations, Chef and Three Dogs, Chef and Keyboard, Sereja and Progressions
March Cook-Off 2016
Alternating subarray prefix
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
June Lunchtime 2016
Collisions, One more weird game
India