January Challenge 2014
Sereja and Graph, Magic Trick, Chef and Feedback, Please like me, Bon Appetit, Meteor, ForbiddenSum
June Challenge 2014
Maxim and Progressions, Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password
July Challenge 2014
Game of Numbers, Lucky Game, Dish Owner, Reach The Point, Chef and Rectangle Genome, Sereja and Equality, Chef and Frogs, Garden Game, Little Elephant and Painting, Count Substrings
September Challenge 2014
Chef and Rainbow Array - 2, Chef and Left-Right, Chef and sequence, Fun with Rotation
October Challenge 2014
Remy paints the fence, DevuLand, Dinosaurs and Laddus, Magical Girl and Colored Liquid Potions, Stringology is Magic, Chef and Square, Chef and Ground, Sereja and two strings
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
Vietnam