January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
February Challenge 2016
Chef and Strange Operations, Chef-Detective
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
September Challenge 2016
Chef and calculation, Chef and digits of a number, Faded Palindromes
November Challenge 2016
Count Permutations, Gift and Chef, Chef and squares, Task for Alexey
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Greedy Candidates
India