September Challenge 2016
Faded Palindromes, Chef and digits of a number
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows
July Challenge 2017
Whats in the Name, Chef and Sign Sequences
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
December Challenge 2017
Chef And his Cake, Penalty Shoot-out
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
September Lunchtime 2017
Chef and Cook-Off Contests
India