April Long Contest
Number Game Revisited, Rectangles Counting, Gravel
June Cook-off
Correctness of Knight Move
July 2011 Long Contest
Large Kitchen, Most Popular Friend
July Cook-off 2011
Misinterpretation, Garden Squares
January 2012 Challenge
Card Shuffle, Lucky Sum, Houses and Restaurants
April Challenge 2012
Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight
June Challenge 2012
Little Elephant and Candies, Doom Bakes Cakes, Arranging Cup-cakes
July Challenge 2012
My Fair Coins, Restaurant Rating, Gift Rift, Chef's Dream, Little Elephant and Bubble Sort
August Challenge 2012
Lucky Driving, Range of Data
September Challenge 2012
Three is Crowd, ChefTown Parade, Queries About Numbers, Racing Horses, Kisses & Hugs
May Challenge 2014
Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone
August Challenge 2014
Chef and Reversing, The Leaking Robot, Chef and Gift
