December 2009 (Contest XI)
Palindromic Numbers, Maze of Digits, Plant Location
June Challenge 2017
A Good Set, Xenny and Coin Rankings, Triplets
August Cook-Off 2017
Real obtuse, From heaven to earth
December Lunchtime 2017
Days in Month, Strange Function, Too Much Sweetness
January Lunchtime 2018
Chef and Game with Sequence
