November Challenge 2016
Chef and squares, Task for Alexey
October Cook-Off 2016
Watson asks Does Permutation Exist
February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Bear and Extra Number, Bandwidth of a matrix, Xenny and Alternating Tasks
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
June Challenge 2017
Xenny and Coin Rankings, Chef and the Feast, A Good Set
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates
September Lunchtime 2017
Chef and Cook-Off Contests
International Coding League (Rated)
Cards Game, Worst Case Analysis
February Challenge 2018
Chef And His Characters, Chef And The Patents, Permutation and Palindrome
India