October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
January Challenge 2015
Chef and Stones, Sereja and Votes
January Cook-Off 2015
Suraj goes shopping, Tojo hates probabilities
May Challenge 2015
Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Chef and Polygons, Chef and Memory Limit
July Challenge 2015
Na2a and lucky stone, Chef and Cube
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
May Cook-Off 2015
Devu and friendship testing
September Lunchtime 2015
Sum of palindromic numbers
India