November Challenge 2014
Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome, The Spelling Problem
December Challenge 2014
Alok-nath and His Sanskars, Chef and Apple Trees, XOR with Subset
January Challenge 2015
Sereja and Number Division 2, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, Gcd Queries
February Challenge 2015
Chef and Equality, Let us play with rank list, Chef and Strange Formula, Chef and Chain, Chef and Strings
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
May Challenge 2015
Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe
April Challenge 2016
Chef And Magical Path, Chef And Coloring, Chef and Ballons, Help Watson Escape
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences
October Cook-Off 2016
Sherlock and the Ugly Flower, Watson asks Does Permutation Exist, ChefWatson uses Social Network
December Cook-Off 2016
Chef and Subset, Chef and Subarrays
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