October Challenge 2015
Spheres, Time measure, Rupsa and Equilateral Triangle
November Cook-Off 2015
Sereja and Line, Sereja and Array and Subtracting
April Challenge 2016
Help Watson Escape, Chef And Magical Path, Chef And Coloring
June Challenge 2016
Chef and Rectangle Array, Chef and Array and K
July Challenge 2016
Andrash and Stipendium, Chef and Segments, Chef and special numbers, Chefland and Electricity
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
August Lunchtime 2016
Studying Alphabet, Lock-Free Stack
December Lunchtime 2016
Superheroes and villains, Fly height mode
January Challenge 2017
Capital Movement, Cats and Dogs
February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Cooking Schedule, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, Bandwidth of a matrix
January Lunchtime 2017
Sealing up, Nothing in Common
India