May Challenge 2012
Lucky lucky number, Remember the recipe, Jewels and Stones
June Challenge 2012
Little Elephant and Candies, Arranging Cup-cakes
August Challenge 2012
Little Elephant and Bombs
September Challenge 2012
Kisses & Hugs, Racing Horses
October Challenge 2012
Little Elephant and Order, Fierce Battles
September Cook-Off 2012
Recipe Reconstruction, Carvans
November Cook-Off 2012
Little Elephant and Permutations
December Cook-Off 2012
Packaging Cupcakes, Reversing directions
January Challenge 2013
The Minimum Number Of Moves
February 2013 Challenge
Buy1-Get1, Climbing Stairs, Efficient Painting, Little Elephant and Cards
February Cook-Off 2013
Row and Column Operations
March Challenge 2013
Tourist Translations, Approximately, Fire Escape Routes, Minesweeper
April Challenge 2013
Fault Tolerance, Levy Conjecture, Maximum Weight Difference, Barcelona Gameplay Tactics
May Challenge 2013
Password Cracking Challenge, Name Reduction, Your Name is Mine, Field Trip
August Challenge 2013
Little Elephant and Lemonade, Hello Hello, Splitting Candies
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