April Challenge 2014
Counting Matrices, Shortest Path in Binary Trees, Divide the Tangerine, Farmer Feb, Chef and Digits
May Challenge 2014
Little Elephant and Balloons, Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone
June Challenge 2014
Guessing Game, Forgot Password, Chef and Subarray, Chef and Digit Jumps, Maxim and Progressions
July Challenge 2014
Garden Game, Chef and Frogs, Count Substrings, Reach The Point, Dish Owner
August Challenge 2014
Chef and Gift, Cleaning Tables, The Leaking Robot, Little Elephant and T-Shirts, Mountain Holidays 2, Chef and Reversing
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine
October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Spheres, Rupsa and Equilateral Triangle
December Challenge 2015
Oracle Devu and Longest Common Subsequence, Chef and Filters, Plane Division, Chef and the stones
April Challenge 2016
Help Watson Escape, Chef and Ballons, Devu and good strings, Chef And Magical Path, Chef And Coloring
May Challenge 2017
Chef and his daily routine, Courses in an university
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining
Belarus