August Challenge 2015
Cooking Machine, Aditi and Magic Trick, Gravity Guy
August Cook-Off 2015
Chef and the Wildcard Matching
June Challenge 2016
Chef And The Hiring Event, Chef and Coins Game, Devu and an Array
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
Bangladesh