December Challenge 2014
XOR with Subset, Chef and Apple Trees, Alok-nath and His Sanskars
June Challenge 2015
Steady tables, Chef and Memory Limit, Chef and Polygons
August Challenge 2015
Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia
November Challenge 2015
Eugene and function, Chef and cakes, Receipt Recovery
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum
July Lunchtime 2015
Greedy puppy, Puppy and game
February Challenge 2016
Sereja and Two Lines, Chef-Detective
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
March Cook-Off 2016
Digital clock, Alternating subarray prefix
Russia