January Challenge 2015
Chef and Stones, Sereja and Votes
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Let us play with rank list, Chef and Equality
March Challenge 2015
Sign Wave, Devu and his Class, Chef and Notebooks
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Division of Lands, Chef and Piano Scales
May Challenge 2015
Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Chef and Polygons, Chef and Memory Limit
July Challenge 2015
Bread, MasterChef, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Gravity Guy, Cooking Machine, Aditi and Magic Trick
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix, Bank robbery
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum
February Lunchtime 2015
Lucky Four, The Warehouse
February Cook-Off 2019 Division 1
Max Range Queries, Chef and Secret Password, Chef and Party
February Lunchtime 2019 Division 1
The Tricky Deal, Chef Challenge
