the <a href="https://en.wikipedia.org/wiki/Talk:Most-perfect_magic_square#Only_Three_Squares.2C_Only_One_Pattern" class="extiw" title="en:Talk:Most-perfect magic square">pattern</a> of the 4x4 type <a href="https://en.wikipedia.org/wiki/Most-perfect_magic_square" class="extiw" title="en:Most-perfect magic square">en:Most-perfect magic squares</a>
<a href="//commons.wikimedia.org/wiki/User:Gangleri" class="mw-redirect" title="User:Gangleri">Gangleri</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>