August Challenge 2015
Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Way Out
January Long Challenge 2016
Chef and Time Machine, Devu and Perfume, Cyclist Race, Chef and Making Triples, Churu and Balls, Rupsa and the Game, Chef and Inflation, Sereja and Salesman
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Operations on a Tuple, The Delicious Cake, Guessing Game, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
Estonia