November Challenge 2013
Chef Game, Superpowers of 2, Yet Another Cute Girl, Sereja and Vectors, Uncle Johny, Square Digit Squares, Missing some chairs, Black and White Tree
December Challenge 2013
Cube Cakes, Rectangular Queries, Reign, Magic Pairs, Funny Marbles, Chef and Codes, Art in Digital Age
January Challenge 2014
Magic Trick, Chef and Feedback, Please like me, Bon Appetit, Meteor, ForbiddenSum, Sereja and Graph
January Lunchtime 2014
Chef and Shop, Chef and String
July Challenge 2015
Addition and Multiplication, Bread, MasterChef, Na2a and lucky stone, Chef and Cube
China