&#x2F;u&#x2F;qwerqmaster on reddit:<p><pre><code>  According to the Guinness World Record&#x27;s article[1] the 
  cube has to follow the World Cube Association&#x27;s 
  regulations[2] on competition legal cubes. The WCA allows 
  modified&#x2F;custom made cubes as long as they meet a list of 
  guidelines, which this modified cube does.
</code></pre>
[1] <a href="http:&#x2F;&#x2F;www.guinnessworldrecords.com&#x2F;news&#x2F;2015&#x2F;11&#x2F;robot-created-by-american-student-solves-a-rubiks-cube-in-just-2-39-seconds" rel="nofollow">http:&#x2F;&#x2F;www.guinnessworldrecords.com&#x2F;news&#x2F;2015&#x2F;11&#x2F;robot-creat...</a><p>[2] <a href="https:&#x2F;&#x2F;www.worldcubeassociation.org&#x2F;regulations&#x2F;#article-3-puzzles" rel="nofollow">https:&#x2F;&#x2F;www.worldcubeassociation.org&#x2F;regulations&#x2F;#article-3-...</a>