November Challenge 2013
Yet Another Cute Girl, Superpowers of 2, Missing some chairs, Square Digit Squares, Uncle Johny
December Challenge 2013
Chef and Codes, Funny Marbles, Magic Pairs, Rectangular Queries
December Cook-off 2013
Chef Goes Through Segments, Chef and Girlfriend
January Challenge 2014
Magic Trick, Sereja and Graph, Bon Appetit, Please like me, Chef and Feedback
May Challenge 2016
Laddu, Chef and Big Soccer, Chef and Balls, Forest Gathering
June Challenge 2016
Chef And The Hiring Event, Chef and Rectangle Array, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
July Challenge 2016
Chef and Tetris, Chefland and Electricity, Chef and Robots Competition, Chef and Segments, Andrash and Stipendium
August Challenge 2016
Chef and Chocolate, Chef and Round Run
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
January Challenge 2021 Division 2
Watching CPL, Fair Elections
