March Challenge 2013
Approximately, Tourist Translations
April Challenge 2013
Maximum Weight Difference, Levy Conjecture
May Challenge 2013
Matchsticks, Name Reduction, Your Name is Mine
June Challenge 2013
Predictopus, To challenge or not, Lapindromes
June Cook-Off 2013
Attic Crossing, Lyra and the Alethiometer
October Challenge 2013
Little Elephant and Bamboo, Helping Lira, Maxim and Dividers
November Challenge 2013
Missing some chairs, Square Digit Squares, Uncle Johny, Yet Another Cute Girl, Superpowers of 2
February Challenge 2014
Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array
April Challenge 2014
Counting Matrices, Farmer Feb, Chef and Digits, Divide the Tangerine, Shortest Path in Binary Trees
September Challenge 2014
Chef and Rainbow Array - 2, Chef and Left-Right, Chef and sequence, Fun with Rotation
Japan