February Challenge 2015
Chef and Equality, Chef and Chain
April Challenge 2015
Chef and Piano Scales, Broken Telephone
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Coloring
June Challenge 2016
Chef and Array and K, Devu and an Array, Chef and Coins Game, Chef And Binary Operation, Chef And The Hiring Event
July Challenge 2016
Andrash and Stipendium, Chef and Robots Competition, Chefland and Electricity
September Challenge 2016
Faded Palindromes, Chef and digits of a number
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences
February Challenge 2017
Chef and His Apartment Dues
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
International Coding League (Rated)
Cards Game, Worst Case Analysis
India