September Challenge 2013
CAO Stage-2, CAO Stage-1, Project Spoon, Chef and Integers , Cool Guys, Merciless Chef, Little Elephant and Exams
October Cook-Off 2013
Polo the Penguin and the Numbers, Polo the Penguin and the Test
October Challenge 2013
Yet Another Nice Girl, Kamehameha, Edit Distance on Grid, CAO Stage-3, Maxim and Dividers, Helping Lira, Little Elephant and Bamboo, Sereja and Transformation
November Challenge 2013
Square Digit Squares, Missing some chairs, Uncle Johny, Sereja and Vectors, Yet Another Cute Girl, Superpowers of 2, Chef Game
December Challenge 2013
Cube Cakes, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries
