April Challenge 2015
Chef and Piano Scales, Broken Telephone
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Gravity Guy, Cooking Machine
September Challenge 2015
Bank robbery, Count Steps in Matrix, Chain of Doughnuts
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
April Cook-Off 2015
Equality, Version Control System
May Cook-Off 2015
Devu and friendship testing
August Cook-Off 2015
Chef and the Wildcard Matching
September Lunchtime 2015
Sum of palindromic numbers
April Challenge 2016
Chef and Ballons, Chef And Magical Path, Chef And Coloring
November Challenge 2018 Division 2
Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
July Challenge 2021 Division 3 (Rated)
Maximum Production, Relativity
India