September Challenge 2016
Chef and digits of a number, Faded Palindromes
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number
June Challenge 2017
A Good Set, Xenny and Coin Rankings
July Challenge 2017
Chef and Sign Sequences, Whats in the Name
August Long Challenge 2017
Chef and Mover, Chef and Rainbow Array
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
February Challenge 2018
Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
India