That is just my impact from viewing their YouTube announcement video. Roice wrote a paper describing a lot of the earlier mentioned puzzles and how they exploaded from the first Rubik's cube. It had been approved as the duvet write-up within the April 2018 edition in the journal Math Horizons. https://magic4d-slot99885.jts-blog.com/35702837/top-guidelines-of-magic4d-slot