June Challenge 2014
Chef and Functions, Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password, Maxim and Progressions
September Challenge 2014
Chef and Rainbow Array - 2, Chef and sequence, Fun with Rotation
October Challenge 2014
Chef and Ground, DevuLand, Dinosaurs and Laddus, Magical Girl and Colored Liquid Potions, Chef and Square, Sereja and two strings, Remy paints the fence
July Challenge 2015
Addition and Multiplication, Bread, MasterChef, Na2a and lucky stone, Chef and Cube
September Challenge 2015
Lighthouses, Bank robbery, Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
December Challenge 2015
Chef and the stones, Plane Division
February Challenge 2016
Sereja and Two Lines, Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective
March Challenge 2016
Palindromic substrings, maximize the sum
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
June Challenge 2021 Division 2 (Unrated)
Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat
July Challenge 2021 Division 2 (Unrated)
XxOoRr, Chef vs Bharat, Optimal Denomination
