May Challenge 2012
Jewels and Stones, Lucky lucky number, Remember the recipe
June Challenge 2012
Little Elephant and Product, Little Elephant and Candies, Doom Bakes Cakes, Arranging Cup-cakes
July Challenge 2012
Chef's Dream, Gift Rift, Restaurant Rating
August Challenge 2012
Little Elephant and Bombs, Delivery Boy, Range of Data, Block Game
September Challenge 2012
Kisses & Hugs, Chef World, Racing Horses, ChefTown Parade, Three is Crowd
October Challenge 2012
Need More Diamonds, Fierce Battles, The New Scheme, Event Organizer, Little Elephant and Order, Maximum Sub-rectangle in Matrix
October Cook-Off 2012
Buying Sweets, Equalization
January Cook-Off 2013
Minimum Distance, Many Chefs
June Challenge 2013
Predictopus, Lapindromes, W String, To challenge or not, Two k-Convex Polygons, Dessert Wizard, Collecting Magical Berries
October Challenge 2013
Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Sereja and Transformation, Yet Another Nice Girl, Edit Distance on Grid
India