February Challenge 2015
Chef and Equality, Chef and Chain
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
June Challenge 2015
Chef and His Friend, Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick
December Challenge 2015
Chef and Filters, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and the stones
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum
July Lunchtime 2015
Greedy puppy, Puppy and game
February Challenge 2016
Chef and Strange Operations, Devu and a light discussion, Chef-Detective
February Challenge 2017
Eugene and big number, Chef and Triangles, Chef and His Apartment Dues, Most Frequent Element, Gerrymander
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
India