February Challenge 2015
Chef and Strange Formula, Let us play with rank list, Chef and Equality, Chef and Chain
March Challenge 2015
Count Substrings, Chef and Notebooks, Sereja and Random Array, Devu and his Class, Sign Wave
April Challenge 2015
Broken Telephone, Chef and Piano Scales, Chef and Interview
May Challenge 2015
Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Anticommutative implication
July Challenge 2015
Rohith and Circles, Sereja and Game 2
November Challenge 2015
Eugene and function, Simple Sum, Chef and cakes
December Challenge 2015
Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters
October Cook-Off 2015
Almost Sorted Permutation
February Challenge 2016
Chef-Detective, Chef and Strange Operations
May Challenge 2016
Sereja and GCD 2, Chef and math, Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs, Power Sums, Chef and Two String
India