[quote=whizzball1]
It's only possible if you say that edges connect. Otherwise it's two dimensionally impossible. Or wires can go into the doors and out the chimney, but that would be silly.
[/quote]

Forgive the "mustn't touch black" rule break over to the right, but I couldn't be bothered to use the line tool. If I did it wouldn't have touched black, so is therefore valid.

[img]http://i.gyazo.com/ffdd810050e000b8eeaa2bc07cc54972.png[/img]