August Challenge 2012
Range of Data, Little Elephant and Bombs, Delivery Boy
September Challenge 2012
Kisses & Hugs, Racing Horses
November Challenge 2012
Coin Flip, Sridhar Likes Travelling
March Challenge 2013
Tourist Translations, Approximately
April Challenge 2013
Little Elephant and Music, Levy Conjecture, Maximum Weight Difference, Barcelona Gameplay Tactics
May Challenge 2013
Name Reduction, Your Name is Mine
June Cook-Off 2013
Lyra and the Alethiometer, Attic Crossing
August Challenge 2013
Little Elephant and Lemonade, Hello Hello, Splitting Candies
March Challenge 2014
Walk, Little Chef and Numbers
April Challenge 2014
Farmer Feb, Chef and Digits, Shortest Path in Binary Trees
February Challenge 2016
Rectangles of Love, Chef-Detective
May Challenge 2017
Chef and Sub Array , Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences
France