September Challenge 2016
Chef and digits of a number, Faded Palindromes
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix
April Challenge 2017
Similar Dishes, Bear and Row 01, Dish Of Life
May Challenge 2017
Chef and his daily routine
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover
October Challenge 2017
Max Mex, A Balanced Contest
India