July Challenge 2016
Chef and Tetris, Chef and Robots Competition, Chefland and Electricity, Andrash and Stipendium
August Challenge 2016
Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation
June Lunchtime 2016
Collisions, One more weird game, Square in numbers
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
Vietnam