The unique normal <a href="https://en.wikipedia.org/wiki/magic_square" class="extiw" title="en:magic square">magic square</a> of order 3, also known as the <a href="https://en.wikipedia.org/wiki/Lo_Shu_Square" class="extiw" title="en:Lo Shu Square">Lo Shu Square</a>.
<a href="//commons.wikimedia.org/w/index.php?title=User:Morn_the_Gorn&amp;action=edit&amp;redlink=1" class="new" title="User:Morn the Gorn (page does not exist)">Morn the Gorn</a>
2010-09-08
<span class="int-own-work" lang="en">Own work</span>