Optical illusion: no dice, no edges.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Nocube.svg" title="File:Nocube.svg">Nocube.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Bernard_Ladenthin" title="User:Bernard Ladenthin">Bernard Ladenthin</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/w/index.php?title=User:RobinH&amp;action=edit&amp;redlink=1" class="new" title="User:RobinH (page does not exist)">RobinH</a> (<a href="//commons.wikimedia.org/w/index.php?title=User_talk:RobinH&amp;action=edit&amp;redlink=1" class="new" title="User talk:RobinH (page does not exist)"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Nocube.svg" title="File:Nocube.svg">Nocube.svg</a></li></ul>