April Challenge 2015
Chef and Interview, Chef and Piano Scales, Broken Telephone
June Challenge 2015
Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Aditi and Magic Trick, Cooking Machine, Gravity Guy
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix, Lighthouses
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Spheres
December Challenge 2015
Chef and the stones, Oracle Devu and Longest Common Subsequence
February Challenge 2016
Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
July Challenge 2016
Andrash and Stipendium, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity
September Challenge 2016
Chef and digits of a number, Faded Palindromes
December Lunchtime 2020 Division 2 (Unrated)
Sed Sequences, One Zero Swaps
India