Basic monochrome depiction of <a href="https://en.wikipedia.org/wiki/Borromean_rings" class="extiw" title="en:Borromean rings">Borromean rings</a>.  For color version, see <a href="//commons.wikimedia.org/wiki/File:BorromeanRings.svg" title="File:BorromeanRings.svg">File:BorromeanRings.svg</a>.
AnonMoos
<p>Self-made graphic, converted from the following vector PostScript source code:
</p>
<pre>%!
541.5 557.94225 translate
180 rotate .75 dup scale
/y{240 120 3 sqrt mul add}def
/w{closepath gsave 1 setgray
50 setlinewidth stroke
grestore stroke}def
32 setlinewidth
426 y 240 0 360 arc w
186 y 240 0 360 arc w
306 240 240 0 360 arc w
50 setlinewidth
1 setgray
426 y 240 -75 -45 arc stroke
426 y 240 165 195 arc stroke
32 setlinewidth
0 setgray
426 y 240 -76 -44 arc stroke
426 y 240 164 196 arc stroke
showpage
%EOF</pre>