February Challenge 2015
Let us play with rank list, Chef and Equality, Chef and Chain
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Chef and Piano Scales
May Challenge 2015
Chef and new recipe, Set Difference , Chef and Prime Divisors, Devu and binary String
June Challenge 2015
Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, MasterChef, Na2a and lucky stone, Chef and Cube
September Challenge 2015
Chef and Chetris, Cracking the Code, Lighthouses, Count Steps in Matrix, Nikitosh and xor, Chain of Doughnuts, Filling the maze, Bank robbery
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Rupsa and Equilateral Triangle
November Challenge 2015
Chef and cakes, Simple Sum, Eugene and function, Chef and collection of stamps, Receipt Recovery
April Cook-Off 2015
Equality, Version Control System
May Cook-Off 2015
Devu and friendship testing
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum
October Cook-Off 2015
Word Stem, Almost Sorted Permutation
January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
