December Challenge 2015
Chef and the stones, Oracle Devu and Longest Common Subsequence
January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
April Challenge 2016
Help Watson Escape, Chef And Coloring, Chef And Magical Path, Chef and Ballons
June Challenge 2016
Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
July Challenge 2016
Andrash and Stipendium, Chefland and Electricity
September Challenge 2016
Chef and digits of a number, Faded Palindromes
November Challenge 2016
Chef and squares, Task for Alexey
June Lunchtime 2016
Collisions, One more weird game
January Challenge 2017
Capital Movement, Cats and Dogs, Reservior
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number
June Challenge 2017
A Good Set, Xenny and Coin Rankings
India