November Challenge 2014
Distinct Characters Subsequence, Chef and Red Black Tree
January Challenge 2015
Chef and Stones, Sereja and Votes, Gcd Queries
January Cook-Off 2015
Suraj goes shopping, Tojo hates probabilities
February Challenge 2015
Chef and Equality, Chef and Chain, Let us play with rank list
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
May Challenge 2015
Set Difference , Chef and new recipe
June Challenge 2015
Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
May Cook-Off 2015
Devu and friendship testing
February Challenge 2016
Chef and Strange Operations, Chef-Detective
India