September Challenge 2015
Count Steps in Matrix, Chain of Doughnuts, Cracking the Code
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
February Challenge 2016
Rectangles of Love, Chef-Detective
March Challenge 2016
Palindromic substrings, maximize the sum
April Challenge 2016
Chef And Coloring, Chef And Magical Path, Chef and Ballons, Help Watson Escape
May Challenge 2016
Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu
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
September Challenge 2016
Faded Palindromes, Chef and calculation, Chef and digits of a number
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
November Challenge 2016
Chef and squares, Task for Alexey
February Challenge 2018
Chef And His Characters, Chef And The Patents, Permutation and Palindrome
August Challenge 2018 Division 2
Modular GCD, Spell Bob, Problem Sort
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Difficult Contests
October Challenge 2019 Division 2
Operations on a Matrix, Phone Prices
January Long 2022 - I, Division 3 (Rated)
Keplers Law, Prime in a binary string, Covid Spread
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