June Cook-Off 2014
Counting Flags, Painting, Knapsack Problem
June Challenge 2014
Little Elephant and Blocks, Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password
August Challenge 2014
Cleaning Tables, Chef and Gift, The Leaking Robot, Chef and Reversing, Little Elephant and T-Shirts
July Challenge 2015
Na2a and lucky stone, Chef and Cube
November Challenge 2015
Eugene and function, Chef and cakes
January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
March Challenge 2017
(CH) Bear and Sorted Rows
May Challenge 2017
Courses in an university, Chef and his daily routine
March Challenge 2020 Division 2
Chef and DAG, XOR Engine, Break, Ada Bishop 2, Winning Ways 2, Lasers Everywhere, Lasers Everywhere Alternative, Pintu and Fruits
April Challenge 2020 Division 2
Squared Subsequences, COVID Pandemic and Long Queue, Leaked Answers (Challenge), Sell All the Cars, Unit GCD, Factor Tree, Ready Bitwise, Strange Number
Starters 158 (Rated)
Make a Tree, Largest Subsequence, XOR Smaller, Buying Game, Multiply 2 to Minimize
Romania