Illegal Cube is a puzzle that should not be allowed to exist. This 'cube' has two corners and three edges too many, and two pentagonal faces. Still all types of turns seem to work. This puzzles is inspired by an idea by Jason Smith. Bram Cohen calls this type of designs 'fudged'.
Watch the YouTube video
Read at the Shapeways Forum
Read more at the Twisty Puzzles Forum
Please contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.