October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus, Remy paints the fence
January Challenge 2015
Sereja and Number Division 2, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Chef and Interview, Chef and Piano Scales, Broken Telephone
June Challenge 2015
Chef and His Friend, Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Na2a and lucky stone, Chef and Cube
May Cook-Off 2015
Devu and friendship testing
June Cook-Off 2015
Longest non regular parentheses sub-sequence, Strange operations
India