title: Minimal svg definition of a polygon with empty squares inside
body: <p>I'm searching for the simplest definition in svg of a squared number '8', like in the figure below (black inside).</p>
  
  <p><img src="https://i.stack.imgur.com/9PD4D.png" alt="enter image description here"></p>
  
  <p>Ways that come to my mind are made of filling several polygons (minimal would be 1 black rectangle and 2 white squares). Is there a way to define it with a single command, specifying all the vertices?</p>
  
  <p>Update: the purpose, BTW, is to create a font from svg files like this one.</p>