July Challenge 2016
Andrash and Stipendium, Chef and Tetris, Chefland and Electricity
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
March Cook-Off 2016
Digital clock, Alternating subarray prefix
February Challenge 2017
Chef and His Apartment Dues
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
India