October Challenge 2014
Remy paints the fence, Chef and Ground, Magical Girl and Colored Liquid Potions
December Challenge 2014
XOR with Subset, Chef and Apple Trees
January Challenge 2015
Sereja and Votes, One Dimensional Kingdoms, Chef and Stones
February Challenge 2015
Chef and Chain, Chef and Strings, Let us play with rank list, Chef and Equality
April Challenge 2015
Count Sequences, Chef and Piano Scales, Broken Telephone, Chef and Interview
June Challenge 2015
Chef and Memory Limit, Chef and Polygons
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
December Challenge 2015
Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence
May Cook-Off 2015
Devu and friendship testing
September Lunchtime 2015
Sum of palindromic numbers
India